Gts250 no physx

And people say ATI has problems with drivers lol.

Anyway, first thing to try is starting with downloading the most recent WHQL driver from Nvidia's website, as well as Driver Sweeper (from Guru3D)

Then:
1) Uninstall all Nvidia/PhysX video drivers from your Add/Remove Programs list
2) Run Driver Sweeper and remove all reminants of the drivers as well (if you have an Nvidia chipset motherboard, be careful to only remove video drivers)
3) Reboot
4) Install drivers

Try these steps and report back  

just tryed it and again the install crashes due to the fact that physx wont install

if it helps im currently using windows xp ( yeah ok its old but i like it ) i have a intel quad core processor and 4 gb of ram

Try running Driver Sweeper and CCleaner in Safe Mode

just tried that and still same problems with physx

Maybe have a look at the Nvidia forum where, you know, people who make the product might be able to help  
http://forums.nvidia.com/index.php?s=8baf429773aeb568ee...

been advised by a friend to run it in quiet by adding /q on the end of the target in a shortcut however this isnt working on xp anyone know if i doing this wrong on xp ?

read many other problems like mine and apparently silent install worked. and btw wolfram23 i've got a post on there at the moment they just take ages to reply

My guess is you'd need to use a - instead of /, although I've never personally done this "quiet" thing. But I've used other similar things and it's usually the -.