[jdev] Transfer File problem

[JOSEMCANTERO]

Hello
 
i'm developing a flash jabber client and now I'm researching how to 
transfer files between jabber clients. I'm using "JEP-96 File 
Transfer". 
 
According to this protocol, target must create a socket with initiator 
in accordance with an ip number and port and then it must connect to a 
second socket. This second socket must connect with sha1
(sid+initiatorjid+targetjid) in port number 0. The problem is that I 
can't connect to this second host  and I don't know how to do it for 
tranfering the file through the socket. I create the socket with php.
 
Thanks.