6
Let me see if I get this right (mateeeee.....)
You want to put a flash banner at the top of your site?
If you want it as an addition to the top of your Insanity Rock and 4thefort banner then I would insert a new cell (spanning the three columns) at the top.
If however, you want to replace the IR and 4thefort image, then just replace the image codes with the flash codes within the < td > < /td > where the two logos are currently located in your theme.html file.