I have been down this road before myself and was a bit confused. The "swift" code is used to identify banks Internationally.
You need to ask your bank for the information if your in the states (don't know about elsewhere in the world). It's usually a combination of letters and numbers. I simply called the customer service number for my bank, and they provided it without any problems.
You can also get swift codes from the link below for your bank but it's best to verify it directly with them.
http://www.exportbureau.com/check_swift_code.html