It sounds like you might be running low on memory. If you get to a point where you can get to your desktop and access the internet, go to reimage.com and downlaod their 5 min scan for your hardrive...
NO.
For a replacement for active desktop on 32bit Vista go here.
http://www.howtogeek.com/howto/windows-vista/bounty-program-success-active-desktop-replacement-for-vista/
The desktop is the home screen for your operating system, not to be confused with your homepage for your internet connection. The desktop should contain a tool bar at the bottom (if you are operating...