The final end state- update
Hi Molly,
I had to make one final posting to finish this story properly
Firstly I set about uploading my CD's into iTunes using Apple Lossless format and simultaneously building a playlist of my favourites. This took a long time, but once it was all done, I saved the iTunes database and slim server was able to update itself.
I then went about playing the slimserver through the squeezebox and was able to access my favourites playlist. Sound quality is as good as CD.
I was also able to set up local radio stations and reception is excellent.
The key points for anyone who goes through this in future is that sometimes setting up Squeezebox on the network can be a pain. It is also useful to set up adequate buffering in the slim server parameters as well as use crossfade function to avoid getting nasty signal drops over the wireless.
Finally, I now believe in speaker break in period. These SR6's have really opened up and I am hearing greater details on both ends of the frequency range.
Here is the final config:
Cambridge Audio 640a (Ver 2)
Monitor Audio SR6
Squeezebox Classic
iTunes
Thanks to every one!