1st- You installed 3.2u without installing ios30 prior. Ios30 is the system ios which would have been stubed with an update and non-functional
2nd- Even with ios30 installed, it is very possible the the newer wii would not function on system menu 3.2. Ios 30 and system menu 3.2 do not support the hardware of newer wii's.
You have two choices
1- If you made a nand backup, you could flash it back using an Infectus nand programmer. This is a big job and requires skills with a soldering iron
2- Send it to Nintendo.
You could always through it through a wall, if that sort of thing makes you feel better.