[RANT]You've gone a long way to do everything wrong. In fact, I really don't see anything you did right. It's almost like you tried to ignore all the advice/recommendations given here. I don't get it.[/RANT]
Newbies reading this post here are the things I see wrong:
* No bootmii.... all wii hackers should install bootmii on every console every time.
* No priiloader.... all wii hackers who dont have bootmii as boot2 need this. And it wouldnt hurt for everyone to install it.
* No one should ever use pimp my wii .... Pimp my wii bricks wiis. As applegoku found out.
* Installing custom wads w/o bootmii & priiloader... yeah, not a good idea.
You've now put yourself in a position where you could easily have recovered your wii, but now your options are very, very limited. What system menu version are you on? You could try SaveMiiFrii.
The only other thing I can think to try (and this shouldnt be related to what you're doing but since it doesnt cost anything to try) - press + and - at the health/warning screen & while holding both press A.
Barring one of these things you'd have to send it to someone to reprogram the NAND. Having said that, I'm going to bet you dont have a nand backup or keys either.
Apologies, misread, you do have bootmii installed. Well congrats, you did one thing right. If you were able to install it as boot2 (if you dont remember count the blue light blinks @ boot. 2 blinks would indicate boot2) you should be able to recover using http://www.mediafire.com/?b2q79i5cphlglcz - format a SD (not SDHC) card & unzip that to it. The /apps/ and /wad/ folders should be on the root, you may need to move them. If it's not installed as boot2, this option does not apply.