Moving SMS from one app to another? topic

I have a lot of SMS that I have from running CM12 with the bundled SMS/MMS app, but now I want to use another rom and that thing comes with the google Messenger app. So does anyone know how to tranfser sms from one app to another, I can get the .db file from SMS/MMS but I don't know how I should go about importing it to messenger. Also I tried titanium backup but trying to restore the App + data just says restore and it never finishes restoring.

I've tried a google search, but there isn't very much to find. I guess people aren't as sentimental as I