if needed, flash the stock rom, make your changes, then flash the custom rom

excuse me sir, ive asked for advice before. awnser me this one. why cant i change info on my diamond it seems to be locked with my old info. ive tried everything and cant change phone number? mdin, etc. etc. HELP!

use winRAR....I just starting using 7 zip because it has better compression = smaller file size

hey there, im trying to check out your htc sense rom for my diamond. it has a file ext. of z7? what do i need to use to open an install your rom, thanks ahead of time.