G-mail problem

When someone sends me an e-mail with a picture, I can open the e-mail and the pic is there to see. So, how come when I forwrd the e-mail to my MSN e-mail account, the pic’s not there? I could probably download the pic to my computer first and then send it as an attachment, but is there a way that I can just forward the e-mail as is?

http://gmail.google.com/support/bin/request.py ?