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How do I allow Azureus through an ISA server

I have a problem letting a .bit torrent program through my ISA server. It is not in an office, just for home use. Azureus in installed on an XP pro pc on the internal network. I have configured my external hardware firewall to forward the port required to the XP box and also have opened the relevant port. When i start up Azureus I get an error in the ISA monitor which I have listed below.
When I run the NAT test on the XP box it says that the port is closed.
How do i allow Azureus through the ISA server??
Any help is appreciated.

ISA error message: ISA server alerts tab:
Description: The number of non-TCP sessions allowed from one IP address was exceeded.
More detailed description: ISA server disconnected a non-TCP connection from x.x.x.x because the connection limit for this IP address was exceeded. Larger custom connection limits should be configured for the IP address of chained proxy servers and back-to-back ISA Server computers with a NAT relationship.

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Kamran Arshad

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George_James_O_Donnell

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Thanks, I have had a look at the FAQ link you posted and will outline what i have tried.
I have created a non published web server protocol from "these sources" set to "anywhere" to send UDP to x.x.x.x and also one for UDP receive from "these sources" set to "anywhere" to the relevant IP on the networks of "All networks and local host" Both windows firewall on the client pc and my hardware firewall have been configured to have the correct port open.
I am getting the following message when I do a NAT/Firewall test within Azureus.
Testing port xxxxx
NAT Error- Connect attempt to x.x.x.x:xxxxx (your computer) timed out after 20 seconds.
This means your port is probably closed.

We are relatively new to ISA and so please forgive our shortcomings.
We are not quite sure what "Protocol Definitions" is refering to?
Is there a book on ISA 2006 configuration that anybody could recommend?
Many thanks,