sidefind.exe destroyed my computer-help!

[compnovice]

I'm far from a computer expert but over the years i've learned how to differentiate the programs i have downloaded and the spyware ones. So last week i was going through the programs in the add/remove area of the control panel and i saw a few spyware programs. Sidefind was the last one i deleted and once i did it removed all of my desktop items. I freaked and rebooted the computer and all i saw was the wallpaper. I did control alt delete to see if anything was running and there was nothing. None of my desktop items were there, there wasn't even a start menu. Nothing but my wallpaper that I downloaded years ago. I tried putting in my original systems cd that came with the computer and nothing happened. I'm holding on to a little bit of hope that the hardrive wasn't erased and all my stuff is still there. Can anyone help? ::