I just manually tested a number of those Proxies to make sure they are reporting correctly, and thankfully they are. At this point I beleive your ISP (or Firewall if you are in a Corporate location) is auto caching Port 80 requests. The theory behind this is like this:
1) Your computer makes a request to a website on Port 80.
2) The Internal Firewall of the ISP picks up the connection and redirects it through a Caching Proxy Server.
3) The Caching Proxy Server picks up the request which is like this:
GET
http://www.site.com/stuff/prxjdg.cgi HTTP/1.0
4) Instead of connecting to the Proxy to forward the request, it simply resolves the
www.site.com and directly connects.
As a result the request comes from the IP of the Caching Proxy Server instead of your own. Since Charon also resolves your IP from a Port 80 request aswell, it is also likely that other results are giving false Anons.
Although this isnt the definate answer, it is the most logical, and a situation I have run into once or twice before.
To verify this, could you please manually resolve a direct request to an AZEnv Judge, and then resolve a manual request via a Port 80 Proxy. Please paste the entire source of the page like the example below:
http://test.anonproxies.com/azenv.php
====================================
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>AZ Environment variables 1.04</title>
</head>
<body>
<pre>
HTTP_ACCEPT = */*
HTTP_REFERER =
http://www.digitalcybersoft.com/Prox...ges-vt221.html
HTTP_ACCEPT_LANGUAGE = en-us
HTTP_ACCEPT_ENCODING = gzip, deflate
HTTP_USER_AGENT = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 2.0.40607; .NET CLR 1.1.4322)
HTTP_HOST = test.anonproxies.com
HTTP_CONNECTION = Keep-Alive
REMOTE_ADDR = 202.116.15.4
REMOTE_PORT = 2989
REQUEST_METHOD = GET
REQUEST_URI = /azenv.php
</pre>
</body>
</html>
====================================
Hopefully we should be able to resolve the exact problem for you after this.