This is how to edit the save if you want to use the ntsc version of the game now. First get a preferred hex editor of your choice then use a save dumper for wii the one i used was save game manager GX. Dump your pal save with the above app then open the "index.sgmgx" file in your preferred hex editor from folder savegames\0001000053583450 it will look like this
now see all the red box's above you will need to highlight the 5 in 50 and then type 45 for all the red box's then it will look like this
then go to file then click save box will come up asking you if you want to change say yes
then after that rename the folder from 0001000053583450 to 0001000053583445 then use save game manager GX again to install the save then your save should show up in the ntsc game now

now see all the red box's above you will need to highlight the 5 in 50 and then type 45 for all the red box's then it will look like this

then go to file then click save box will come up asking you if you want to change say yes
then after that rename the folder from 0001000053583450 to 0001000053583445 then use save game manager GX again to install the save then your save should show up in the ntsc game now