To post pics you use the code that has [IMG] in front and behind it, from where ever you have the pic loaded too. Just insert the code for the pics when your typing your reply and the pics will show up.

EDIT: Another easy thing to do is create a gallery on here with your pics and then post them that way using the FORUM CODES for each pic. There will be a link in blue that says FORUM CODES below each pic and you just copy and paste that code that pops up into your reply.

EDIT #2:How to post pics from your (or anyone's) gallery.