Apologies for the downtime - it turned into a rather large problem. The upgrade didn't happen, as we were having some timeout issues with the server trying to process the upgrade scripts. We've reverted back to the original 2.2 version, which should be working ok. There might be the odd bug around as some of the scripts worked, some didn't.
So what's next? We're going to pay the software developers to upgrade us, thus then they can have the headache of figuring out what to do! As to when that will happen, we'll keep you informed.