I thought this module would solve my problems but it's driving me crazy instead.

I don't want to ship to anywhere outside Australia. I'm using a chart of 14 zones with different rates for quantity (bottles of wine, in fact). So I thought that I'd followed the instructions properly but it doesn't work.

When putting in the address details, there is a field for state. Sometimes after I try to go to the next page, an error is returned telling me to select a state from the drop down list - this is actually the zone codes, not state codes. At other times the state is automatically altered to a zone code but it is not necessarily the correct code. Therefore the wrong shipping cost is supplied.

Have I put my zones in too many places or what? Can I add a zone field to the address block which would not override the state field? What am I to do?

I am feeling so frustrated with this - after almost a week I have accomplished very little when it is just so easy to do in previous shopping cart programs I have used.