You need to learn how to script. Open up the Weapon_Bow.cs in notepad and read it loads. Then change little bits of it (numbers, not words!) and see what happens. Eventually (about a year it took me) you will be able to script. Models? Pfft easy. Get Google sketchup pro version trial, draw a 3d shape, export to .obj then import to Milkshape. Flatshade and export (to .dts) in milkshape and you are done. I'd do scripting first until you know more about modelling though. People are usually nice when it comes to giving out models.