Hello_Wurl,
Your post is fairly old but I use SMC as a drop shipper and have edited the "zipcodezone mod" to work fine based on the shipping costs for dropshipper SMC (which are based on the cost of the order, not the weight). It calculates shipping based on the total order cost as SMC does and is right on for determining shipping costs after editing the SQL file for zipcodezone.
There hasn't been a reply to this thread in awhile but if anyone needs the edited SQL file let me know.
My current problem now is I've taken on a second dropshipper but they calculate their shipping conventionally by weight of the order, NOT price. I'd like to be able to incorporate both dropshippers into the "zipcodezone mod" but don't know that that is possible.

Anyone have an idea?

Thanks,

Rod