Depends, but there is a chance it will not. I don't know all of the .DLL version updates that occurred between Ac2K and AcXP, but your references would be affected pretty strongly.
It is POSSIBLE that you could save the AcXP version of the .MDB to a lower version of Access IF you included that option when you installed Office or Access XP. Saving "down-version" is an option that I don't recall to be part of the "default" or "standard" installation process. You had to have performed a "custom" install to get it. The good news is that Office allows a "custom" RE-install that lets you add features you didn't previously select. But you need the installation kit for Office or Access to do that.