Creating a mall banner and confused on coding. Any advice?

I've been researching malls left and right for the last 2 months because I've always wanted to start or join one. I joined one of those malls with small sized shops since mine is currently only size 80 and after a while I decided to make my own. I made the banner itself and now I'm working on the coding and I can't get the coordinates part right. I have no idea what I'm doing wrong with it either. Does anyone have any advice or know of any tutorials on coding a mall banner that could help me? At this point I'm open to any advice.

Try this site: http://www.image-maps.com/
----------------------------- [color=purple]Protect your account[/color] http://www.neopets.com/~punchback_bob CG information & more

Thank you so much! I'll go try that site out now.
Luna's Food & More http://www.neopets.com/browseshop.phtml?owner=silver_wolf373

another good program is Handy Image Mapper

Handy Image Mapper for the win! It's so handy. (yeah, that's the one I use)
bête noire (bet-NWAHR) noun: An object or person that is particularly disliked or that is to be avoided

Thank you so much everyone! I finally go it coded.
Luna's Food & More http://www.neopets.com/browseshop.phtml?owner=silver_wolf373