Modelling Problem

[Mockcongler]

Hello everyone, I've been modelling for the past few days and started to model a wrench. Everything went good, modeled about 50% of the whole thing and wanted to see if it would work normal when imported into a BRF, and it didn't. The thing is that some faces are not drawn in-game/in BRFEdit.

Here's a picture of the unfinished wrench in Wings3D:


And here's a picture of it in BRFEdit:


As you can see most of the faces of the scaling thingy and the cylinder are not drawn. What am I doing wrong, or why is this happening? Help would be appreciated.

Thanks.