I second what
@dlochner posted.
We all like helping others on the forum. However, when it comes to AC wiring where someone can get injured or killed if it is wired wrong, it's best to point you to sources of information where you can learn how and why to wire it correctly.
I'm glad you asked before proceeding because your assumption below is incorrect.
AC feed neutral (white) to top left (where PO has the white jumper in place); hot feed (black) immediately below the white/neutral wire (attaching the black feed wire at top position of thin copper plate that is attached to the four breakers); and ground (green) to copper bar at left (with that attached from base of the bar to engine ground).
Here is a short description of a how normal
Marine AC panel is wired.
The main breaker on a marine AC panel breaks both the black Hot wire and white Neutral wire of the shore power circuit.
The black load side of the main breaker would then be jumped to the power feed side of the individual breakers. The white load side of the main breaker would then go to a busbar.
The black hot wire from each individual circuit would connect to the load side of that load's breaker.
The white neutral wires from each circuit would go to the white neutral busbar.
Each circuits green ground wire and the shore power green ground wire should all be connected together at another busbar.
A marine AC panel has a Reverse Polarity indicator. If the shore power polarity and boat polarity does not match, a dangerous shock hazard may be present and the Reverse Polarity light will be lit.
As the others have said, never connect the AC ground to AC neutral on the boat. It is connected at the power source on land.
That is just some basics.
It might be best to start with a new panel with it's own wiring schematic so you know exactly how it is supposed to be wired. If you do use that panel be sure to clean every connection point to shiny brass. A corroded/dirty connection can cause enough resistance to get hot enough to start a fire.
Take a look at the Blue Sea Systems AC panels.
www.bluesea.com. They make a very nice panel.