TSWEB on mult client workstationst

have two servers running 2003 with exchange. I have set up tsweb and aware of how it lacks the ability to recognize any dns entries from outside the lan. My question is, I have set up tsweb on both servers and forwarded the apropriate ports. I am not using 3389. On my router i have the ports 33xx going to one server x.10 and 33xx x.11 going to another, how ever when i try to get to x.11, it goes to x.10. i have tried editing the bindings in IIS. I dont understand why this is happening. I have the proper port forwarded to x.x.x.11 but it is still forwarding this to x.x.x.10. I can use RDP but I am testing this for a client. Any help is greatly appreciated.