Setting up server and IP client

#1
:?: I just installed Progdvd (not registered yet) on my HTPC. Running in viewing and servermode .
Than i installed a IPTV client on a local network machine.

I'm not getting anny channels on my IPTV client (tried blind search with Unicast and all interfaces right multicast group and correct port).
What am I doing wrong?

Does the IP TV client/server version work on non registered software?

If I register can the IP client choose other channels (same transponder) than the one currently in use on the server?

How many IP clients can run simultainlously on a registerd software (small nettwork)