IP-TV through VDSL

[bob]

Hello,
recently "Deutsche Telekom" in Germany started to roll out VDSL with IP-TV. Normal Internet access is working fine but IP-TV is not working through pfSense. After research I found this:
http://forum.pfsense.org/index.php/topic,626.0.html

This is kind of hard to understand for people that are not developers but simple users of pfSense.

How can I build this into my latest snapshot of pfSense? Do I need to start with this?
http://wiki.pfsense.com/wikka.php?wakka=BuildingpFSense

Or is this multicast support already in pfSense?
But if I build my own version, I can't follow the new official versions since mine will be special? Would it be too hard for developers to compile the Kernel with this option?
http://m0n0.ch/wall/list-dev/showmsg.php?id=3/51

I suspect multicast will be a very important feature since IP-TV will become more common. The Linux guys have this solution:
http://man-wiki.net/index.php/T-Home_IPTV_without_speedport_W_700V

Sorry, many questions, but my IP-TV now hangs after 10 seconds since the multicast is not working…