First, please update your profile to show the model number, not the nickname of the device.
This might help:
What to do next if Jl Cmder will not connect and wipe - BlackBerryFAQ
Did you try the solutions in the yellow sticky at the top of the Help section on what to do if DM doesn't recognize/connect?
http://www.blackberryforums.com/blac...ect-my-bb.html
Another possible solution would be to download BBSAK (use Google to find it) and try to instal the OS that way.