Nah, like I said I didn't mind the update (brickblocker not needed), and region override is turned on in wiikey settings so no need for regionfrii. I just used the clean ISO.
First, here's my setup/steps, hopefully it helps.
- NTSC-U Wii with Wiikey 1.9g, I ran the full update (didn't do the 15% trick), have dupe channels (don't mind them lol), have access to wii settings.
- Burnt DVD9 release on a Memorex DVD+R DL 8x at 2.4x using a LG (HL-DT-ST DVDRAM GSA-H10N...
I was stuck on that one too, somehow I passed it after switching my pikmins around a bit until I had the same colors as the ones in the event's pic, aka one white, one purple, one yellow, one blue and two reds. Dunno if the order is important tho!
Once you load the .nds in the program, double click on the rom's name and it will bring up the menu where you can check the "enable patch cartridge access" option. Hope it helps