Load up your current bin in TP.
Go to the "Compare" item on the menu
Click "Load Compare bin" 
 Select each of the files (4 total)
 
Once they are loaded, go back and drop down the "compare" menu item again and 
select the bin who's VALUES YOU WANT TO COPY FROM
(Check mark next to it)
This is the file that the "compare" value is displayed when you open an item for editing.
 
Now that they are loaded, go to the TOOLS menu item.
Select "Difference Tool"  (Now the fun part)
 
The first box will default to your current loaded bin, 
Select the second bin you wish to see the differences from (Best to select the one you check marked earlier)
editing is easier if you keep the selected files the same.
 
Click "Search" and all the differences will be displayed.
You can double click in the difference box and the item will open in the editor. (also showing the "selected" file value.)
 
If you want to transfer the value from the compare bin just highlight the item (if its a table value) and click "Copy from Compare"
 
Do that for all the values and you can easily transfer your old bin values and tables to the new one.
 
Don't forget to save your bin before exiting TP.