hey you dont need to jailbreak, the app your looking for it iphone explorer. do a google search and youll get it immediately.
Originally Posted by Sheila Marie
look in the root "/" directory for /private then> /var>mobile>library
sms.db is the file that contains all your sms messages. to get it out simply drag and drop onto desktop. then get sqlite3 database browser (another quick google search *its on sourceforge*) and open that file and all your sms messages in there on one of the tabs, in one of the drop downs :P just copy and paste into a notepad.
hope that works and helpd ya.