Don't worry about using NUSD. Just download the updated
[Only Registered Members May View Links| Click here to register] and use it to update your Wii Shop Channel.
If you really, really want to use NUSD instead, here's how:
-Start NUSD, if it's the first time using it, it will generate a certificate for you, just restart NUSD and continue.
-With NUSD open click on the
Database... button on the top right and follow through to
System -> Shopping Channel -> YOUR Wii's REGION -> Latest.
-For some reason, V17 gets downloaded as the latest, so type in 18 in the version box to the right of the Title ID box up top.
-Then just make sure that
Pack -> WAD box is checked and click
Start NUS Download.
-A folder will be created in the NUSD install folder which contains
Shopping Channel-NUS-v18.wad.
-Just copy that to the
WAD folder on your SD card, insert it into your Wii and use your favorite WAD manager to install it.
-Have a Beer, (Root Beer if under age)
-[]D