[Darkjedi]

if you use PIM Backup you can still backup your Mogul texts and restore to your TP, just make sure you choose not to delete the current database and "add only new messages." The thing about this is that it can take a really long time for it to restore since PIM has to check against the current database. I've done it before however so its definitely possible. Just backup your texts again once the database has been merged so you don't have to deal with the excruciatingly slow restore process again.

http://forum.xda-developers.com/showthread.php?t=299705