bsmith0731
Member
Select wipe data/factory reset in Clockwork recovery. This will wipe out all your system data but nothing on your SD card (Titanium backups, photos, music, etc.). Often when updating the same rom it is only necessary to do a cache and dalvik wipe (sometimes called a "dirty" wipe as opposed to a "clean" wipe, which is the wipe data/factory reset). On some updates a "full" or "clean" wipe is required. For this update, a full wipe is required.
Also, I always do a nandroid backup in Clockwork before installing a new rom or version of a rom. That way if there's a problem I just do a full wipe again and restore my backup and I'm back where I was.
What about re-installing the google apps? does that need to be reflashed?