VC question

Ok, How do I get to display my VC in FS2004? do I need to export it seperately, ect? Do I have to add / specify in a CFG file?
I know I ask a LOT of questions, but I am learning! never done it before, and I had a look at Milton Shupe's tutorials, and see there is a name.mdl file then as well as a name.x file and a interior.x file. I dont have that file in my model after exporting. Why?? is it neccesary?
see
http://www.flightsimonline.com/C162/export/
I know I ask a LOT of questions, but I am learning! never done it before, and I had a look at Milton Shupe's tutorials, and see there is a name.mdl file then as well as a name.x file and a interior.x file. I dont have that file in my model after exporting. Why?? is it neccesary?
see
http://www.flightsimonline.com/C162/export/