FlashCom being blocked by Schools

I teach high school physics out here in the virtual world also known as
distance education.

I've created a FlashCom tool that allows my students to get homework
help from me. They can either talk to me live or leave a recorded
message for me to reply to later. They can use text and audio and I
respond with text, audio, and a whiteboard. Rather than a Shared Object
system, my whiteboard is a screen capture using Camtasia's Live Output tool.

The whole thing works great when:
1) Students use it from home.
2) Teachers use it at school with their faculty passwords.

But at nearly all schools, when students try to use it with their
student passwords, their browser just times out somehow and never lets
them participate. Since my whole course is Flash and Quicktime-based (on
DVDs and CD-ROMS), they routinely use Flash on these same computers when
working with local files. And they've been doing that for years (since
Future Splash!) with no problem.

I've had three server administrators look into it with no success. But
these people are usually given a huge number of schools to keep up and
running so they've not really put in a lot of effort I'm afraid.

Any ideas about where to start here?

Any help would be appreciated,

Chuck Duncan

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