Don't hold your breath. Lee and Chris don't hang around here. But a lot of other people have successfully gotten their models in FPSC.
Mabuggi gave you some good tips to get started. Look at an FPE file, most of the fields are pretty self explanatory. If you want just a static model then you really only have to concern yourself with a few fields. Open up one of the FPE's from one of the entitybank furniture folders. Now change the "model" field to point to your model (in .x format). Now change the "textured" field to point to the model's texture. Rename the FPE and
that's it. If you have the FPE, model, and texture then that is ALL you need to get your model into FPSC.
Now if you have other questions like how to make it move or animate then that is really a modeling question and doesn't have anything to do with FPSC.
And once you get the hang of this, most of the other fields in the FPE file are explained in the manual.