well, your going to need some tools to do it:
1. you have the unoffical editor?
2. model converter?
3. the model you made in OBJ. format?
make sure you scale your object and rotate it correctly, save it as a export (following the correct steps from yoshiboys tutorial to scale and triangulate). load it with the importer, and add it using the editor
texturing is diffarent though, you need a BRF converter