Citrix workstation URL viewing

Greets

I don't know if this is the correct
list but I'll try.

I need to monitor http traffic on a Citrix network. It uses 128 bit enc. from client desktop to the Citrix servers, in other words all internal traffic is encrypted. When traffic exits the Citrix servers to the firewall and out to the Internet it can be monitored, but will only reveal the server IP address. Has anybody faced this scenario and did you find a reasonable solution.

By reasonable I mean possibly something like a workstation installable utility that catches all the URLs a user access's. All we want to do is match URL's with a workstation IP.

Sincerely

Bob DeBolt
Pres / CTO
Starblanket Research