I read somewhere, that you must use MDT 4 with MDTservicepack (try to download and install latest one).
I think that MDT 4 is not supported on Windows 2000, so you could use Windows NT 4 for MDT 4.
I you want to need only geometry (not feature tree) than you rather try import data via ACIS *.SAT files. It's faster and almost error free. You don't need to have both products on same computer and you don't need to run both products together (also you don't need faster CPU and more memory - MDT is hungry).
Xchangeworks is extension modul for MDT. Xchangeworks can be used for importing from SW or any other format, which can SW read, to MDT. Not from MDT to SW.
Jiri Hlavacek, CSWP
TG NUMIC CZ, a.s.
Sumavska 31a, Brno 612 54
Czech Republic
jiri.hlavacek@numic.cz