Yeah, you're right about the osCommerce connection to Zen, which is why it was so easy to migrate over. There were a few differences (improvements, actually) but mostly everything translates the same.
I've been dreading that tax nightmare since I learned about it - I've not looked at the mods for osC yet, but I was looking at the mods for Zen last night - all I found was for California, and the tax laws aren't the same. I thought that in Ohio, tax will applied to the shipping address regardless of the buyer's address... is that what you think?
I think I'm just gonna write my own code for this one; shouldn't be too bad since you can download the tax rates from Ohio Taxation Web site.
I just really wish it didn't become effective Jan 1; December is our busiest month 🙁
(although I guess I technically have until July...)
-E