Yeah, I'm thinking it can run on XP. But you might want to make sure you meet all of these requirements.
Operating System: Windows® XP, Windows 2000, Windows Vista, or Windows 7
CPU: Intel® Pentium® 4 at 1GHz, (Mid to High Range Dual-Core 2.5GHz CPU or better recommended.)
RAM: 1GB of RAM (2GB or more recommended for XP, 3GB or more for Windows Vista and Windows 7)
Hard Disk: 8GB Free HD Space
Graphic Display: 3D video chipset with pixel and vertex shader model 1.3 supported. GeForce 4 Ti4200 64MB or ATI Radeon 8500 64MB or newer for Windows XP. For Windows Vista and 7, a GeForce FX 5200 128MB or ATI Radeon 9500 128MB or newer is needed.
Sound Drivers: DirectX 9.0c compatible sound card
Network: Broadband Internet connection
If by chance you do meet all of the requirements for the game, try this:
Start -> Run -> (type) sfc /scannow (with the space)(Enter)
sfc = System File Checker restores files to their correct state.
This may require you to put in your XP CD, if you have it on hand.
Be sure to restart your computer after doing all of that.
Good luck.
