Sounds perfect Andy, thanks, and I've installed it, and added the following to the Detailed template:

<%Plugins::ULTRAGlobals::NL_2_BR($LongDescription)%>

But the LongDescription field is now not showing at all on the final html page.

Am I doing something stoopid? Do I have to use Luna templates (not the older Default ones) for this to work?

Thanks,
--Jo