Here is the thread for JakDillard's loaded ROM.
http://forum.ppcgeeks.com/showthread.php?t=13981
You can backup and restore your text and other stuff such as contacts, calender, etc. with PIM Backup. The link to that thread is below...its located over at XDA Dev.
http://forum.xda-developers.com/showthread.php?t=299705
If this is your first time with this stuff, I recommend reading at least the first post of both threads. With PIM Backup, you should back it up to a Storage Card because once you flash, it'll erase everything on the device.
Good luck! Let me know how everything goes.