Figure I have done everything right, have the twitter links and inline editing, but not noting the lightbox awesomeness. Do we have to switch this on somehow, didn't see a link, or am I missing something in the upgrade process?
Deebs, good idea on the reverting of templates (something I must admit to not doing all that oftern).
Brogan, will have a fiddle about with the setting and see if it clicks something into gear, Deebs might be onto something with the caching - using FF which caches like a bas***d at the best of times.