Once installed the slimdevices recognized the new server and needed firmware upgrades. There was also a small matter of configuration!, Squeezecenter exports a web interface on port 9000. This is where the initial configuration is down which is essentially wizard driven.
One of the main uses of the Squeezebox's in the home is to listen to BBC radio. Luckily some creative chaps have written a plugin called Alien BBC. The main dependency of Alien BBC is mplayer which is easily resolved with.
sudo apt-get install mplayer
With the dependancies out of the way the plugin can be downloaded, refer to the archive listed in the instructions
tar -xvzf <archive>
sudo mv Plugins/Alien /usr/share/squeezecenter/Plugins
sudo chown -R squeezecenter:nogroup /usr/share/squeezecenter/Plugins/Alien
finally restart squeezecenter
sudo /etc/init.d/squeezecenter restart
So now the functionality is back where it was when I started....onward and upward...