I tried stratplan idea, and it did not work. I tried midwest idea and it did not work. I put both ideas into a page, and midwest failed, but stratplan worked.
Go figure --
http://www.ewurster.us/entropy.shtml
This was my first try at entropybanner, and I uploaded one jpg banner. So my experience was similar to Stacy's.
I'm on server ten.
The working code looks like:
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="Adobe PageMill 3.0 Win">
<TITLE>Untitled Document</TITLE>
</HEAD>
<BODY>
<P>stratplan banner idea "include virtual="/cgi-bin/entropybanner.cgi"" </P>
<!--#exec cmd="cgi-bin/entropybanner.cgi" -->
</BODY>
</HTML>