I am connecting from a Windows XP laptop to my Windows 2003 server via
Remote Desktop. I want to be able to map a LAPTOP drive letter to a
shared drive on the SERVER. After plowing thorugh many articles about
client-side drive redirection, nothing seems to answer my question.
Thank you.

To Clarify : I want LAPTOP drive X: to map to -> SERVER drive C: (for
example) while in the session. I don't want to see my local drives in
the session.

Please let me know if I'm understanding your question properly.

You want a logical drive (X:) to be mapped to a shared resource
located on the server, within the RDP session?

If so, simply map X: to \\<ServerName>\<ResourceName> (NET USE X:
\\<ServerName>\<ResourceName>) at the server console.  The drive
letter X: will then be available to you during your RDP session.  But,
that logical drive will not be accessible by your laptop because it
exists on your server, not your laptop.

If you want to map a logical drive X: on your laptop to a resource on
your server, simply map X: to \\<ServerName>\<ResourceName> (NET USE
X: \\<ServerName>\<ResourceName>) at the laptop console.  The logical
drive X: will then be available on your laptop as long as you are
connected to your server, but you will not have access to that logical
drive from within your RDP session because that mapping does not exist
on the server.  It exists on your laptop.