Gizzy, the censor will only effect posts made after the censor has been changed, so that wouldn't work on old posts.
Actually, the best way to do this is with a mysql regex. You should probably backup your database before doing this, because this will check all rows, and a typo could be a problem
You should probably close your board while you do this as well as it might take quite awhile run.
UPDATE ubbt_POSTS SET POST_BODY = REPLACE(POST_BODY, 'www.da7.com','www.audiotalkback.com'),POST_DEFAULT_BODY = REPLACE(POST_DEFAULT_BODY,'www.da7.com','www.audiotalkback.com')
