When you open a knitting machine it does look like Spock's brain at first. Don't be discourage. Read the instruction manual, join a guild, check out support groups on Ravelry. There is help starting here.
splityarn calls this the "Easiest Knitted Sweater Zipper Install Ever" and it looks like it might be. I haven't tried it yet but I'll let you know if I do - my one attempt to put a zipper into a knitted sweater came out OK, but not this nice.