you have no .fpi file nor an icon. Lets start with the easy one first.
create a picture of your model with a white background. It must be 64x64 pixels. I usually start with a large screenshot and resize it down. Save it as a .bmp and name it the name of the object.
Next look for a similar object that behaves like your model and copy its .fpe file. Open that file with a text editor.You will notice the most important thngs are these.
desc = This is the name of the object
model = This is the name of the .x file
textured = This is the name of the .tga for your model
Name the .fpe the same as your bject.
Name the .bmp the same as the .fpe
A good idea is to learn the structure of the .fpe file. It will lead to a deeper understanding of how FPSC works.
With the .bmp icon, the.x model, the .tga texture and the .fpe control file you will have what it takes to get an object into FPSC
I hope that helped.