I currently have a store running v1.3.9h

How can I get the database my v1.3.9h installed into a Fresh Copy of 1.50

I have searched but can't find definited answers.

I thought I could just drop the 1.50 database tables and then import the 1.39h database backup i made into the 1.50 database. However when I did that I couldn't view the store's main page it told me there was an error and to try refreshing the page.

So I went back and reinstalled a new copy of the 1.50 and now need to know how to get 1.39h into it. I gather I have to run the zc_install file but how will it know where my 1.3.9h backup is?

I have done upgrades before but this is confusing me and need a quick point in the right direction.

Signed,
Printchic