If they hold down the left button, when they let go, they're going to your sponsor regardless. Right??
This will stop the right click "properties", place this in the body tag (if you didn't already know) oncontextmenu="return false"
And rather than mouseovers, try this...
http://[email protected]
Everything after the http:// and before the @ are ignored. You guys probably know this but maybe somebody didn't. This can be a useful alternative to mouseovers which a lot of tgp's, link sites and avs sites give you trouble over.
RD