I've seen a lot of questons about how to post pics, so here goes.
First you have to have a Photobucket account(it's free to sign up). If you don't have an account, click HERE
Once you have an account you can up load your pictures to photobucket by clicking here(where the circle is) and picking the picture from your computer that you want.
Once you have pictures in your photobucket account, just right click and "copy" the IMG tag as circled in the pic below
Then "paste" it in the topic your replying in, it'll look like this
Ok now your done. hit preview post and see if the pics come up. If they do then you did it right and if not you did it wrong