You have to love MS for this one:
On your old drive; go to user/"you"/documents/ (easier by column
view), and copy/burn the folder titled "Microsoft User Data". All of
your emails address info and account info (for you) has been backed
up/copied.
After you have installed Office X on the new drive:
I suggest starting up entourage once before the next step, and do not
set up an account, and closing it ( I could be wrong on this but it
worked for me).
Now return the "Microsoft user data" folder that you copy/burned to
your "user/"you"/documents/" folder say yes to replace.
Start up entourage and your emails and address information should be
availabe.
I hope this is helpful.
George