Upload the photos to an image hosting site, then copy the source URL between image tags ([IMG][/IMG]). No special app needed, it can be done within browser.

Hey Max,want to post pics of my 7620 I just bought,is this possible thru an iPhone?What app do I need?Have photobucket app,but only posts to twit and face sites or can I get to a computer then my photobucket to S.S. site?Read you may be able to help,this rg is beautifully brutal!
Thanks alot