You can upload pics with your post.

When you post your topic, there's a checkbox that says, "Attach files to this post?". Check that and it will let you browse to an image on your computer. Then click "upload".

If you've already posted a topic and want to add an image to it, go in to view it and you'll see an "attach" button. Click that, browse to the file on your computer and click "upload".

So easy a dirt rider could do it.