can someone give me step by step instructions, and none of the ones that already exist because they're not very helpful.
http://grabcad.com/questions/tutorial-how-to-create-a-double-helical-gear-in-solidworks-usefull-part, it's for SW, similar commands in every software.
Start creo 2.0 and make new file.
select sweep then helical sweep.
click on reference then define plane(as you wish).
Then draw a line at some distance of center line.
click ok and then select axis line.
click on sketch and then draw object as circle then ok.
Helic is drawn after these steps then can select pitch.