FIRST: If you are moving your site, DO NOT UPGRADE AT THE SAME TIME!!! Do your upgrade BEFORE moving, or AFTER moving, but never DURING the move. Otherwise you'll typically run into problems that can't be quickly resolved because you've got too many server issues confused into the picture. YOU HAVE BEEN WARNED!
1. On your NEW host, create a new MySQL database. Note the username, password, database name, and host name (usually localhost).
...Instructions for moving your categories and products over from an OSC database to the Zen Cart® Database.
-by networkdad
Ok, a few things before we start:
Warning:
There are several all-in-one "packaged" "bundles" of Zen Cart scattered around the internet, but none of those are endorsed by Zen-Cart.com, as we believe that the manual installation is the best choice to have your system secure and optimized and so you know *exactly* what *you* have put onto your site.
If you choose to use a packaged installer from someplace else, make sure you ask *them* for all your technical support needs and ensure that they intend to keep things up-to-date and that they will provide you with free support for updating *your* site whenever they make updates to their bundled packages.