LOL! Yah, banner ads stink, but I don't feel bad for the unwanted bots. Sorry you had to see the ads tho. :-)Actually, it should be just pointing to nowhere.com (which doesn't exist) right now, since I don't know that it's necessarily good to send 'em to Excite.
Wow! You really pointed out a couple of helpful tips. It would be a good idea to redirect to the shtml pages. The thing with robots.txt is that it's necessary for the "good" spiders. Hmm..
The encoded pages are done with a program called HTML Protector. Still have to get my subdirectories, but the important ones are covered. Disable-right-click scripts don't work very well, but this program encodes the entire page if you want it to. You can get it at http://www.regnow.com/softsell/nph-softsell.cgi?item=8527-2&affiliate=25698 (yes, I'm a shameless affiliate- lol).
Thanks for your help!