Dunno bout running two motors - i dont think you can, but someone will chime in on that - but for the single motor wiring...
Join the wires together when u solder em, so there's 3 motor wires and 2 batt wires ;)

Large pics, so i won't post em- but here's the link :)

http://www.ausrc.com/galleries/danhf..._wiring_01.jpg

http://www.ausrc.com/galleries/danhf..._wiring_02.jpg