I don't know what you mean by cracked shopping channel. Updated maybe? None the less yes you can still buy WiiPoints and purchase DLC on a hacked Wii.
I have a modded wii with cracked shopping channel.
Is it still ok if I buy wii points to buy tracks for guitar hero (the newest one) I have it on disk.
Cheers Darkcide. That has pleased the missus more than I ever could