When you post, use Go Advanced. Under where you type your message, way down the page, you'll find Manage Attachments. You can post pics from your computer, which is where the Browse button is. You can only post one at a time (as far as I can tell). All of the pics on my computer turned out to be too big, so I picked up Easy Thumbnails, a free program that works with Windows, and converted all of my quilt pics to thumbnails, and now I can post!
Hope this helps.