Assistance Needed: Exporting Customers & Users from Znuny 6.5 to 7.0 and Logo Size Adjustment

[harift]

I need your assistance with the following for our Znuny environments:

We are currently using Znuny 6.5 for support and have deployed Znuny 7 for internal use. I would like to export Customers and Customer Users from Znuny 6.5 and import them into Znuny 7, so that both servers have the same data.

Is it possible to simply export the relevant tables from the Znuny 6.5 database and import them into the new Znuny database?
Will this method work for synchronizing the customer data between both servers, or is there a recommended approach for this migration?

Additionally, I have added our company logo to the new Znuny 7 instance login page, but it appears very small. Could you please advise on how to increase the logo size and where this setting can be modified?