I finally got 3D support for my Rage 128 to work with RedHat 7.1, you were right, with newer releases it's much easier.
If DirectX is integrated into Wine this is certainly a great thing, but for the fms this will most certainly not help (at the moment): Direct3D is a huge package, and most commercial games use Direct3D IM, FMS uses the Retained Mode (D3DRM) of DirectX. I don't think the D3DRM will run soon on Wine.
As we see it, the best solution for porting FMS to Linux, is using Borland Kylix (Delphi for Linux). The FMS is written completely in Borland Delphi and Borland Kylix is said to be more less compatible with Delphi. The only remaining problems are 3D acceleration (currently DirectX) and interface communication.
Making the FMS Open Source is one of the things we are still thinking about. The init-erros were just a misteak in the last minutes (everything had to go fast) of the Beta 6's release, we hope to fix the it with beta 7.