|From specs I read desktop, 80GB hard drive with 3 partitions, 915 chipset which means that that is a single core Celeron and 1GB RAM.|
Increase memory to 2GB
Increase page file (virtual memory) to 2000MB
Add video card based on your graphics interface (hopefully at least AGP 8x)
This is not an ideal system for Windows 7, based upon your components, you probably would have been better off with a clean installation of Windows XP.
You have to be a little bit crazy to keep you from going insane.