tcp remote connection

[acer20006]

hii all .

laterly i start proxy project , purpos of it is to accept messanger connecion (yahoo .hotmail..)and redirect it

so my problem had 2 part

part 1 > The proxy _my code just accept the incoming connections (work as a server ) but it didn't work as a client

part 2 > messanger tcp's proxy always keep changing i can't set port on my connection code 'i cant make link of both connection , proxy'

so my question is there any way to make proxy listen and send data through it to another remote connection?? and if there is any way to pretend the messanger port or force it to specific port ? thx