1. Please take a full snapshot of the v16 site once all your design work is done to keep as a backup in case anything goes wrong 2. Export a design backup from the v16 site (Design | Export Design Snapshot) . 3. Close v12 4. Import the v12 site directly into the v16 site (File | Import Sites) 5. Import the v16 design snapshot to the v16 site (File | Snapshot | Import Design) 6. Reopen v12 and continue to take orders but do not make content changes unless replicated in v16 otherwise we have to do all of this again 7.When v16 is ready to go live, import the orders from the v12 site (File | Import Orders)