The remote has a receiver that plugs in to a usb port. To get the remote working (almost perfectly) in Knoppmyth R5E50 I followed these steps:
Set up latest (0.8.1 at the moment) lirc:
Download, decompress it
./setup
Choose USB->Dvico
Exit and run configure
make
make install
Make lirc run at boot
echo "/usr/sbin/lircd --driver=dvico --device=/dev/usb/hiddev0" > /etc/rc5.d/S20
Copy this file to ~mythtv/.mythtv/lircrc
Reboot and everything should work perfectly!