On Sun, 18 Apr 2010 15:00:46 +0100, in message
> Need to ask about Thunderbird but dont see any specific groups for it.
Ask Thunderbird questions in the mozilla.support.thunderbird newsgroup which
you can find on the news.mozilla.org news server.
Do not try to use a different news server to read or post to mozilla.support.thunderbird.
Like it or not, the mozilla.* newsgroups have been set up like a company
news server. They are not shared with other news servers across Usenet.
Set up a second news server, "news.mozilla.org", in your newsreader.
You can also use Google Groups to access the mozilla.* newsgroups.