I purchased a D2pro and Wii-Clip from Mod Chip Central (I'm located in the USA, while they're located in Canada, if that makes a difference; possibly US laws preventing them from shipping it with firmware?). I've tried to put the Wii-Clip on a few times, and each time, the LED goes on, but backups will not play, only originals.
I'm starting to wonder if the D2pro came with firmware installed, or if I need to purchase a d2prog and install some firmware. Anyone ordered a D2pro from here? Maybe it's just the Wii-Clip and I should head over to RadioShack for a 15W soldering iron (my iron is 25W, will that work?) and some 30AWG wire?