All my downloads are running at exactly half my 1mbps line speed but when browsing pages load at full speed. Im using openweb as a isp and its past 11pm so no shaping.
Firstly, I would ask a mod to change your username. You are spam fodder.
Secondly, what kind of downloads are you talking about (e.g. Steam, torrents, ftp, etc) and post a speedtest result from a server closest to you (http://speedtest.mybroadband.co.za/).
If possible also post your ADSL line stats which you should be able to find when you login to your router.