Got home a little while ago, thought I'd chill before crashing - started watching an episode of Big O and I nodded off at some point. Ok, I'll do that later.
Decided to check in online and while I was messing about with Mozilla (the 1.4 installer did NOT like something I had installed on 1.3 - I had to uninstall it AND delete the entire mozilla.org directory) my DSL went live! It wasn't when I checked it before I started mucking, and I was on dialup. Then I rebooted after the install and Mozilla was loading the start page and I'm like "wait a minute, how is it doing that?!" So yay for DSL!
But I tried the demo I've been mentioning - and it fails. I recognize the error - at least one of the firewalls between the public and the server doesn't have the right hole punched in it for the communication. Since it was working from the internal network (which has multiple segments, so I was passing through some of the FWs) I suspect it maybe the PIX that guards the border. I wouldn't have been hitting that from inside at all. I left a vmail and email for our operations guy, Paul. He's sharp, so I'm hoping he gets back to me while I have the energy to troubleshoot this. I can hit it from here while he tweaks FWs.