HTC Hero (CDMA)

I've done search on the web and can't seem to find it so I'm going to ask on here. Can you tell me how I can forward and MMS message in my in-box? Can't seem to figure it out.. Also if I want to select a comment and copy and paste how can i do that in my text messages?? Thanks for the help.. Just came from a blackberry and trying to learn. Thank you