How to do this?

[Lynne]

Mark, unless you install a modification, users will end up in usergroup 2 after registering. Usergroup 2 is what is by default called Registered Users. How are you planning on making them end up in the Users Awaiting Moderation group (groupid 4) instead of groupid 2? I'd suggest creating a new group called whatever and when you create it you copy the usergroup and forum permissions from the Registered Usergroup (groupid 2). Then, copy the permissions you want from Users Awaiting Moderation to groupid 2 and rename it something like "Moderated Users". Then you may rename whatever to UnModerated Users and create a promotion from Moderated Users to UnModerated Users.