Nice fish, I almost thought it was a Blue cause of the size.
The only way know to get pictures on is when you start the new thread, select "manage attachments" then upload from your computer. I save my picture to the desktop first and upload from there.
You might want to resize it first as well. If it is saved on your desktop, right click on it with your mouse, go to "open with" Microsoft Picture Manager or any editing program, select edit pictures, then resize to smaller size.
Hope that helps