So I grabbed a copy of Prophecies & Factions yesterday. Figured I would give the whole GW thing a try.
I am a "hardened" WoW player so forgive my absolutely stupid questions. But I would appreciate some help. (WoW/Diablo style question in brackets)
1) If I create a party with henchman or summon a minion how do I control those henchman? (Where is my pet bar?)
2) How do I identify items? (Where is Deckard Cain?)
3) How does agro work, I noticed yesterday if I attacked something it seemed to stick to me and almost completly ignore the warrior, are warriors tanks. Do you need tanks? (Where is KTM?)
Firstly, welcome to GW
1/ Like someone else said, you can control henchmen 'to a degree' with the buttons below the radar.
Pets are contollable a little bit more. You should get a number displayed next to the pet name in your party (typically 'P' when in a zone) window when there is a ranger with a pet in your party, which you can then click on and this will expand the pet skill menu. The ranger must have Charm Animal equiped in his skill bar though for the pet to display.
Minions (typically raised by Necromancers) cannot be controlled at all. Think of them like being zombies, mindless, they just whack stuff, their attacks and damage potential can be drastically buffed though

ANet introduced the Hero system in Nightfall (you should then have 4-5 clickable buttons below the radar) whereby they are even more controllable / customizable than henchmen from Prophecies / Factions, i.e. you can set their skill bars, tell them when to use their skills, who to attack and also set them on a specific target till it is dead (iow, take the agro), whether the hero must be in attack 'mode', not to attack (defend), etc.
2/ ID items with a identification kit, which you can buy from any merchant and later on you will get a Superior ID kit that you can use 100 times before it is consumed. You can also exchange certain items for ID and Salvage kits at certain NPC's in certain towns / outposts. In Kaineng in Factions for instance, there are quartermasters that will allow this.
When you ID something it can unlock items, and weapon upgrades, on your account, which will make it available to all other chars on that account as well, once it is unlocked. You will be able to determine an item's worth as well by ID'ing it. When identifying GOLD items you gain levels in a specific Title track, called the Wisdom title.
Unlocking skills works on the same principle, once it is unlocked on your account, any char can learn it and a PvP char that you create can use it as well as any hero, providing it is the correct class.
3/ The first person to attack normally receives the agro. This is normally what happens when you attack first, but this is AI for you, and targets are known to switch agro if they deem it necessary, if a more sever threat is discovered. Kiting will cause you to lose agro as well. This is where selecting your target, by pressing "C" (closest target) and then CTRL+double-clicking on that target or do a CTRL-SPACE which will then display a little bubble above your char's head saying" "I'm attacking devourer!(eg)". This will get the henchmen party moving, providing they have not been moved by the commands below the radar. They must also be in close proximity to the target before they will start attacking, this normally means your party can be just outside the transparent circle in the radar, which indicates your agro circle's border. there is another method of attacking too, which is CTRL-SHIFT+DoubleClick or CTRL-SHIFT+SPACE which displays "I'm targeting Devourer(eg)". This will also get the henchies / heroes moving, and you will not attack, ensuring you wont take agro. This is mostly the better option imo.
In Normal Mode the NPC's AI is scaled down a bit, whereas in Hard Mode (introduced in April this year), the AI of the enemies are a lot sharper and better as to make it not as easy, iow more challenging. they also kite more and quicker than enemies in Normal Mode. ANet made the same AI changes regularly if a certain farming build became too popular for instance, forcing players to design new builds.
(For Jonny Two Shoes - 'agro' essentailly means when your target is made aware or becomes aware of your presence and then starts attacking you. The person that attacks or comes wuthin agro-range first is normally known as 'taking agro'. This is typically done by Warriors, due to their higher armor rating.)
BTW, Warriors can defenitely tank, but this is not their sole purpose. other classes can tank quite well with ceratin builds. It is widely accepted that in serious PvP, if you call a warrior a tank you will get flamed. Warriors are still accepted as being the chars with the highest consistent DPS (Damage Per Second) than any other char.
Thanks for the advice,
1) Perfect, okay I now understand how to control my stuff. Was a bit weird last night trying to get the warrior to attack mobs before I did.
2) Right, ID kit easy enough. Salvage kit? Is that like disenchanting magical items?
3) Okay, This still makes me wonder a bit. There is no "agro" list like in WoW. So even if the warrior is tanking the mob will still attack me? Obviously I have a WoW type understanding which is based around threat on a mob. The more you damage a mob or heal a group member the more threat you generate and the mob will always attack the party member with the highest threat
1/
2/ Salvage kits are used for removing certain items (ranging from materials, weapon upgrades, runes, etc.) from salvageable material items, that are typically dropped by monsters. Once the material has been removed the original item may either be destroyed or can be sold to a merchant or further salvaged.
When your rank in certain titles increase your chance of not breaking items when salvaging from them, increases, meaning you can salvage more than once from an item, but only if there are more than 2 different things to be salvaged that is.
Salvaging is done in order to gather Materials and Rare Materials, which in turn is used to craft armor and weapons and also to gather any weapon upgrades or runes to increase your attributes or give health or magic buffs.
Some materials are worth quite a lot. Ecto's (short for Globs of Ectoplasm - Rare Material) are used as an ingame currency for buying high-end weapons and items, because when trading with a fellow player you can only give 100K in gold, but one ecto is typically worth 4.5K each, and you can easily fit more than 1000 ecto's in a trading window, which equates to way more than 100K. There are quite a few items that are worth 100K + xx ecto's.
Additionally, certain items and weapons only drop in certain places as well, for instance, Ecto's only drop in Underworld and "Tombs" (The Tomb of Primeval Kings) from certain monsters. And you can only go to UW (Underworld) once you have 'ascended', which is when you reach a certain point in each chapter.
Okay, Salvage kits make sense then. Regarding trading. Is there an Auction house or something similar or do you just use trade channels?
No auction house unfortunately, it would be great if we had one.

Trading is done in real-time, you initiate it all ingame and do the trade, etc.
ANet had an update this year whereby certain posts are regarded as a trade, which automatically appears in the trade channel.
These are typically WTS / WTB. You advertise your wares with WTS and follow with what the item is and it's stats and also your asking price.
ANet have tightened the public chat down as to keep trade "spam" out of it. You will be banned for a time if you are found to be trading in the public channel.
People do not really sell "common" weapons or non-max items / materials. These just go straight to the Merchant. It is typically "Greens", Gold items / weapons and other rare material or wanted items that are sold to other players ingame.
There are certain web sites that specialise in Guild Wars information, some even have Trade Auctions. I would highly recommend checking these sites out, as they will be invaluable for a new guy.
Check out
http://www.guildwiki.org (Elite GW fansite) and
http://www.guildwarsguru.com (Elite GW fansite) and go from there.
Oodles of information between these 2...
I hope what I have said made sense, once again welcome, have fun and enjoy. ^^

If you need help ingame, msg me ingame, my IGN is Cortine Muerte.