Wirelessly posted (HTC Diamond: Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 7.11) Sprint MP6950SP)
Are you sure it was error 324? That's a strange code.
I suggest you uninstall and reinstall activesync or wmdc and make sure your sync connection is working and try again. One of those roms should work if you are unlocked properly.