1. Install compatible versions of the following modules on new Zen Cart store:
Admin Login as Customer
CAPTCHA Anti-Robot Registration
Confirm Email Address Entry
Ultimate SEO URLs or equivalent
Purchased modules (we will purchase):
Customer Password Change (from ThatSoftwareGuy)
Combination Discounts (from ThatSoftwareGuy)
2. Migrate the products in the old store's database to new ZC 1.5.1 store on the new domain. Transfer all product image files to the new store.
4. We have our own custom template, so no design/layout work is involved.
5. Old store must remain operating and unaffected during transition, and until new store is fully operable.