Hey Hardcore, I'll see if'n I can help ya.
After you have gone to Post or Post a reply and have written what you want.(you must write something in the message field)
Scroll down untill you see Options 'Add an Attachment' Click on that.
A new field will come up. scroll down untill you see 'Filename' Click on 'Browse' this should take you to where you have your pictures stored. Double click the picture you want.
Then you can either Preview or submit your post or reply with picture.
Now just let me say this. The maximum upload size for pictures is 1.23 mb. this will make a hugh picture on the board. Try and downsize your picture to fit in the post.
Also remember that the picture must be in either a GIF, JPEG, JPG, PNG, TGA or TIF format for the site to accept it.
Now with all that said, I do know that the site is haveing a little problem with avatars and pictures. I see that your avatar is working so I suspect you can send pictures.
Let me know if this helped ya.
JIMINPORTBASS