I'm trying to order a few things, but it says that I need to supply a password with my e-mail address? Do they mean my e-mail password or what?
NOOOO!!!? NEVER GIVE OUT YOUR E-MAIL PASSWORD!!!!
They want you to give them your e-mail address (so they can send you an order confirmation) and then YOU MAKE UP A PASSWORD TO USE ON THAT SITE!!!
Your e-mail address will probably be your user ID on that site and you make your own password up.