try this :
take the file reelbox4you_0.1-3_i386.deb
http://www.megaupload.com/?d=KMQV96V2
put it to AVG
then
dpkg --install reelbox4you_0.1-3_i386.deb
aptitude update
after this, you can install CCCam or GB per SC.
Just go to Update and chose options and the rest is working automaticly.
Don´t forget to change at /var/keys (gbox.cfg and cwshare.cfg)
and /etc/vdr/plugins/sc (cardclient.conf)
After all this it should work. And if you use a cardreader at rs232 you can share ...
Cheers
Tschii