hmmm allright we'll do a step by step from here for you to post a pic right in this thread.
1. you first would click on POST REPLY, this brings you to the screen that has a red bar running across the top labeled POST REPLY
2. below the red bar are the sectioned areas highlighted in either gray or light gray each one is labeled, for example the first section is labeled LOGGED IN USER, now look at each section going down till you see the one labeled ATTATCH FILE
3. it is a light gray field, in there click on the gold button labeled BROWSE, this will create a little pop-up labeled CHOOSE FILE, this is where you look for the pic you are trying to display, usually a JPEG or JPG file, for example dodge.jpg when you find your file click on it and it should show up in the bottom of that pop-up where it says FILE NAME once it is there click the button labeled OPEN
4. when you click the open button it will bring you back to the reply screen and your file name should now be seen in the gray box next to the gold BROWSE button
5. make sure whatever text you wanted has been typed in and then click SUBMIT REPLY and your post will be added and the pic should show up in your reply