All you need to do is on your wii create a save of the game you want the save of. Now (still on your wii) download the save on to your SD card. Get on your computer and the folder structure will already be there.Now just swap the data.bin on the SD with the one you downloaded from wiisave. Take the SD to your wii put it in and upload the save on to it. The only thing that can possibly go wrong is you could have put th data.bin under the wrong game code if you have more than one save on your SD card or for you to have downloaded a defective save from wiisave.

you dont necessarily need to get the folder structure from your wii, just type it in on your computer like this:

1.go to your sd card drive
2.create a new folder named "private"
3.in private, create a new folder called "wii"
4.in wii, create a new folder called "title"
5.in title, create a new folder and name it the code of your game (for example: legend of zelda twilight princess, USA and Canada version; the folder will be "RZDE"
6.download the "data.bin" file to that folder
7.put it in your wii and enjoy someone else's hard work as your own :-)

Rob I know how to do it. It is jusst easier this way.