HTC Touch won't update ROM correctly

[xizzmatt]

I flashed my HTC Touch to CricKet and CricKet couldn't activate it. So I thought I'd use CokeMans unlocker, when I did that I disconnected it from the computer. It rebooted, then it rebooted again and again and again and you get my point. This has happened before, the way I solved it before I flashed the official sprint ROM and everything was back to normal. But now when I try to update with that ROM it freezes at 29% always. I tried tons of other ROMs they just keep rebooting. Please I need help!! Thanks in advance