Static Backround

Hiya

I'm struggling a bit with inserting a single static background that
doesn't tile and will sit in the center of the screen below the header
and above the footer or within the edible region if that is possible.
I'm sure the answer is simple but I just can't see the wood for the
trees on this one.

The site is run on a non-profit basis. Any answers gratefully
received.

Relevent files are:

http://home.btconnect.com/the.lounge/temp/catchalot.dwt
http://home.btconnect.com/the.lounge/temp/images/skateback.jpg
http://home.btconnect.com/the.lounge/temp/cscode.htm

Thanks
--
SandTiger
http://home.btconnect.com/the.lounge/