BSOD Errors

For some reason, whenever I run a utility to modify World of Warcraft, such as blizzard downloader, or at random, my computer will crash. I have run Memory tests and my RAM is completely fine, Zone alarm used to crash but that's a known errror. I've switched over to mcaffe since then and haven't been able to estabalish what has causing the BSODs, they don't happen very often but I know when they will most likely trigger. When the PC is idle or not running any major resource consuming applications, it will run fine. The driver isn't being displayed in the blue screens so I was wondering if anybody could read these minidump files. Help is extremely appreciated, thank you
edit: seemed to attach here.
http://www.techspot.com/vb/attachment.php?attachmentid=12244&d=1167964735

bump, can anyone help please?

Brand, model, Speed, FSB, OS, hdd, memory, video graphics, age of machine?

HP Pavilion a1410n, Win XP media center 2005 180 GB HD 1GB DDR Ram Ati Radeon X1600 Pro, almost 6 months old
Ack seems the minidumps were removed again, here is a link to them hosted on my webspace.

http://testretis.vip.graal.net/Minidump.zip