TopgunCKD,
The drivers you need should be included in a download of ActiveSync 4.5 (Windows XP) or Windows Mobile Device Center (Windows 7). If you are running Windows 7, I seem to recall that allowing Windows to check online for drivers will find it.
Once the PC loads the driver and you connect the phone, the phone will appear to be dead, but is connected in a special diagnostic mode, even though you may not see any outward signs of life from the phone.
Run the correct unlocker (
http://rhodiumw.htc-unlocks.com/hard-spl.php) and go from there. Good luck, and read the description of everything you download for your phone carefully - Remember that there are a few different (and incompatible) versions of software for phones that look very similar and are named very similarly.
If this helped, don't forget to hit the 'Thanks' button!