Jeff:
As yet, just the tutorial on outputs. Hard to say fromt he diagram exactly what you need, but the outputs page woudlnt be
used to match the gear really, just the design. Id design a gear with 42 teeth and play with the module or DP will you find one thats 1.7" in diameter.. thats probably the right gear .. but you can compare the teeth on the design page to try to match it to what you see.
As to outputs, the depth per cut is 2.5d cuts, thats bascially the gearwidth on a normal gear. If its 4th axis the depth is the root depth, so you dont need to set anything..
Art