To upload, you have to have your photo hosted on an online photo server.

Most use photobucket, flicker, etc.

Once uploaded, you'll see a code to post it online that will look something like this:

http://www.photobucket.com/rutmi01/IMG_1600-vi.jpg

Copy that, when posting click on the "Image" link under "Instant UBB Code", and it will bring up a pop-up window, paste the image in that window, click "OK" and it will insert the link and tags into your text box. When ready to post your submission to the board click submit.

IF you've done it right, your post will have pix.