I post my pics via photobucket. I will add to photobucket and then copy and paste the link from the photobucket page. This will allow actual pics in the body of the message and not an attached thumbnail.
I don't think so. I tried that and it didn't work for me, you can attach a thumbnail by adding the file from where you store your pics. But this won't be in the body and people will have to click on it to view it.