How do I get GRAW working?(Ghost Recon: Advenced Warfighter)

[mister g]

This program has been a huge fail since I bought it about 3 weeks ago.
http://www.microcenter.com/single_product_results.phtml?product_id=0318864
The first thing that showed up was an incompatability with DEP, I turned it on for all programs just to be safe and had to disable it for this game for it to work, I grappled with other problems but finally got it to play decently for a while, anyway right after I finished mission 6 I try to continue to mission 7 but I get turned to mission 2 which I already finished. I've already looked around the web but can't find an answer. I was looking at this site whose forum found a solution for Windows 7 but not applicable to my Vista. Please help I really want to finish this game!
http://guides.gamepressure.com/ghostreconadvancedwarfighter/guide.asp?ID=1034

 

[evilgenius134]

If it fixes a Windows 7 problem it will most definately fix the problem on Windows Vista. Unless you have already tried it.

 

[mister g]

Did, the reason I'm asking here is because I've already searched the internet for a solution and it isn't working for me, not even the 7 fix, also because I don't want to create a Ubisoft account just for tech support in which they'll tell me reinstall the game and I'll have to get back to them in 2 weeks in order to reach level 7 again.