Some CFS2 models work fine in FS2002/4. Others don't so you will have to try them yourself to find out. Look for the latest FSDS2 or Gmax models. You might need to re-alias Panel or Sound CFG files for them to show on the menu. Some will also need an Aircraft.cfg tweak for the animation to work properly.
Paul Rebuffat used to have his own section hosted by Sim-Outhouse. This seems to have changed & his stuff is now posted in the CFS2 Aircraft section. His Bf 109s & some of the Spitfires are earlier FSDS1 models & not fully compatible with FS2004. Unfortunately it doesn't tell you which ones in the file description.
I did find one here that flies great but no VC? Fun little bird with funny elliptical wings
Tempest might disagree with me but all true Spitfires have elliptical wings. Some later versions have their wings clipped a little. You guys over the pond seem to like these for some reason I never understood.
