I am on zencart 1.5.0 in the shipping module zone rates. In my e-book guide, and on the shipping module, it has included in zone 1 countries these attributes--- US,CA. my question is, I want all 50 states to have shipping charges based on the state, so for example, all of CA would get charged a flat rate of shipping for any zipcode within CA, all of IL would get a specific rate for the entire state, no matter where the zipcode in the state.
I want to do this because it will make it easier for what Im trying to accomplish for shipping. In the zone 1 countries, should I continue to do the state abbreviations? like US,CA,IL,FL,MI? or do I need to do it like US,CA US,IL, US,FL ect or do I do for zone 1 countries US,ca then go onto zone 2 countries US, FL? do I need 50 countries zones set up?. Im not sure exactly how to do the abbreviation so I can set the zone 1 shipping table. Ive looked everywhere for an answer to this before I posted this thread.

Much Karma to anyone who has an answer to this.