JB, go to the hyperlink named 'deposit files' and download the superoneclick 2.3.3 zip
When it downloads, open the folder, and double click on superoneclick.exe. It will ask you if you want to extract the files, click yes. It will extract to the same folder as the zip is in. Open the new superoneclick folder, and double click superoneclick.exe in that one. It will open the program.
Next, go to settings/applications/development on your phone and make sure usb debugging is checked.
Now, plug your phone into your computer, and click 'root' in the superoneclick program. Let it do it's thing, and it will tell you that you are rooted.
reboot.
That's it.