Vista Tutorial - Remote Desktop Connection 6.0 and Windows Mobile 2003

I contacted MS to see if I could use my PDA with Windows Mobile 2003 to
connect to my desktop computer via the internet, using Vista Remote Desktop
Connection, and they replied yes. See the following response.

"Hello Bob,
Thank you for contacting Microsoft Sales Information. Per our discussion,
I've attached links with information you may find useful.
I can confirm that Windows Vista comes with Remote Desktop Connection 6.0
and that you may connect using your Windows Mobile 2003."

There were no links attached, so I searched the internet and MS sites and
the Remote Desktop manual, and could not find any confirmation on this, or
how to do it. Could someone please provide the details on how this is done,
and also if this feature is available with all versions of Vista. I also
don't understand the limited instructions I saw on how to set up Remote
Desktop to work via the internet. Can this be explained in a manner that
someone who is not a network administrator, and does not have one, could
understand.