Are these ones you are getting from someone else, then trying to forward, or ones you created and trying to attach a picture.
If they are the ones you are creating, are you using the sms or mms message option? You can only send a pic with mms. sms is for text only.
I am trying to forward texts with embedded pics sent from someone else. I have tried to "forward as" mms. Still getting the big red x. I read some of the other forun threads about calling verizon and a "soft reset." Obviously, i am an inexperienced user!