Let's see if I can help.
Click the "New Thread" on the top left corner.
Go down to the Additional Options and you'll see the Attach Files Box and click "Manage Attachment".
The Manage Attachments will come up and click the "Browse" to find your picture from your computer.
From here you can upload your picture, but be aware that there is a 4.77 MB limit on the size of the file so you might have to re-size your picture.
Click "upload" when you have finished selecting the picture.
You can go here to test.
Test Forum - Motorcycle-Journal Forums