Help on tcp plugin

I have a fastrack supreme with internet plugin (cfg 471,0)
I will try to execute the sample tcp socket server.
My needs are to have a java socket client on my pc that sends data to the socket server on the fasttrack.
I compiled and runned the sample application using the uart1 bearer, but the execution exits after some logs.
Then, if the tcp server will work, how to connect my pc with fastrack with ppp?
I followed the instruction for the direct cable connection on xp but when I start the connection it fails with timeout

thanks

Luca