Sorry - trying not to cross-post:
Hey, Guys - here is the answer to that one, I think - From
This Thread
Re: Change the default SMS program
Posted by: tene ()
Date: November 02, 2010 02:11PM
Go to options, check "use old app for sending sms"... that's if I understand right the behavior you describe, in contact detail, hitting SMS just open the standard SMS app, not PocketCM threaded SMS.