Cool, but why would someone want to download a program to look at advertisement when they're bombarded with it online everyday 24/7?
Of course, uploading your own advertisements and CV's etc is a bonus, but when you take into account that someone needs to download/run your program for it to add any value first, they may be skeptical and/or forget to run it.
If you had come up with this idea a few years ago (I'd say 99/2001 ish) then it might have worked. Now with websites and web applications being "mainstream" you're better off creating an advertising content network online for people to have the ads display on their own websites etc like with Google Adsense?
I'm not bashing, just giving my opinion