Would be a better option but i guess its not available in VB. Thats the reason i download all the mails and search them offline Amit
It would be cool, but not cool enough that I would want to hack up vBulletin databases/PHP files to do it. So the request would have to go to vBulletin for a future version.
check at the bottom of the page of private messages. you will find xml | CSV | Text click them and you are done