Windows 7 - BSOD when playing flash video divx video or just leaving computer idle

windows 7 32-bit
installed 1 week ago
original OS windows XP Pro

specs website HP Compaq d530 Convertible Minitower Desktop PC*-* Download drivers and software - HP Business Support Center

i just installed windows 7 a few days ago on this system belivieng it met minimum requirements, I think now i may be wrong. all the hardware specs are basically the same on my system from the above link exept:

the psu is now a 300w one: allied al-a300atx rev:b
Allied AL-A300ATX Desktop PC 300W Power Supply PSU | eBay
(only link I could find no specs page)

I added more 1.2gb of ram to the already preinstalled 1 gb and it brought down the read rate (maybe im saying that wrong) to 266mhz single channel from 400mhz single channel

added an NVIDIA Geforce fx 5200, it might be a fake or custom one since it's a pci old(non-express) card not agp and its ram is only 128mb. the driver installed is windows vista version, I installed it using compatabillty vista mode not because I needed to but because it was recommended:
GeForce FX 5200

heres the report any help would be apprecitaed thanks:

Windows 7 Upgrade Advisor - Download - Microsoft Windows

ok so i ran the upgrade advisor (that for some dum reason i didn't know existed) and i passed with flying colors, don't worry about that non compatible driver that is just the intergrated intel video card which i knew before i installed windows 7 that it wasn't compatible so i got the geforce fx 5200 video card

will it make a diffrence if i check the ugrade advisor in the original windows xp OS, if it doesn't then what could be causing the BSODs