Your able to post pictures when you are 1. Posting a New Thread or 2. Posting a Reply (blue button, on the left, just under the last post) Note: You can NOT add pictures if you click Post Quick Reply.
When you get to the area where you can type text into the text box scroll down past the post thread/reply button. There will be a box that say Additional Options. In that box you will see the Manage Attachments button, click that. The Manage Attachments window will open. Click the brows buttons to upload pictures. Be sure to push Upload. Wait a few seconds then minimize the Manage Attachments window. The images you uploaded should appear under the Manage Attachments area. I recommend you click Preview Post before posting to make sure the pics show up.