Hi Barry,
Good to see another Ubuntu enthusiast. I am not using your version of Ubuntu however I did try updating from Fiesty Fawn (6.X???) to 7.4 / 7.10 and had a couple of problems because of non-standard components (I think in my case Beryl).

I was instructed to remove this component and try upgrading after that. Had I had a standard Ubuntu I think it should have gone fine, however since I had played around alot with Ubuntu I had a couple of issues.

There is help on the forum and a Mirc channel which is really helpful. Do let us know how you got on. Each version of Ubuntu seems to be a significant improvement in terms of plug and play ability and easy to use features.