cube-cart to zen-cart moving

live store on aaa.com domain, and hosted on Host-A.
this is cube-cart

and i have a test site installed on another host at another domain.

test store on bbb.com domain, and hosted on Host-B.
this is zen-cart ( i have moved the products manually from cubecart )

how do i make the test store become the live store?
such if you go to aaa.com now you will see the zen-cart of bbb.com
but you wont notice any changes in the domain.

I do not want any interruptions on the store.

[ do not care much about the database at this time ]

how do i make the test store become the live store?
such if you go to aaa.com now you will see the zen-cart of bbb.com
but you wont notice any changes in the domain.

I do not want any interruptions on the store.
Would be best to move ZenCart from "b" to "a"
Put it in a folder & get it working on "a" then move it to the base/root of the domain"a" - - only a small amount of downtime while you move it up one level

For reference see these where the concept is the same
https://www.zen-cart.com/tutorials/index.php?article=99
https://www.zen-cart.com/tutorials/index.php?article=122