When you create a new user in wss32007, it asks for the user's
"name" - which becomes the "Name" column in your "People and Groups".

I want to change this column from a standard edit box into a calculated column
which displays [First Name] & " " & [Last Name].

Now, I can see that one problem is that those fields don't initially exist, so
you can't calculate based on null. However, is there a way to change the *use*
of the "Name" column and use a different column (say, a custom calculated
column) to become the new "Display Name" (which shows in the Welcome area)?