this is what I believe threaded messaging that's ripped off from a Palm Treo Windows mobile phone. So you should know that it's not necessary a legitimate method, and unless that's fine with you / everythingq, I suspect the discussion has to stop here.
Note: You will not be able to use poutlook anymore on your text messages, which means if you have previously rely on Jeyo mobile extender or equivalent tool to backup your text messages, you will have problem with this port. Also, any uninstallation would likely require you to hard reset your device.
I strongly recommend you to use extremetext if you are not prepared yet
