mopar...you click on "post reply" as you usually do to write your message then before you submit it scroll down to the" additional options" section below and click on "manage attachments"....then click on browse, select your file...then click on "upload". You can upload up to 5 pictures at a time... the pictures you select however, must be no more than 500x500, so if they are larger you first need to reduce them on your computer file....that's basically it. then submit as you usually do.