sounds to me that when you have done the mod you have selected not to instal all active ios's.
best to redo the mod using the following settings on modmii. ( if you have already backed up nand then skip that bit)
1. "w" modmii wizaed and guid2.
2. "y" rehack wii
3. "4.3" frimware version
4. "e" europe
5. "bomb" letter bomb exploit
6. "y" would you like to download all active ios's
7. "4.3" slect version wii will be on
8. extra channels, pick what you want
9. custom themes, pick what you want
10. "y" usb loader
11. "1" fat 32
12. "3" both
13. "usb" where loader files will be saved
14. "y" go ahead
15/16 pick where you wanr files to be saved too.
then just follow the tut, if you have already backed up the nand then it sjould only take you ten minutes,
there is is only a few steps.
you already have homebrew channel installed so it will be just a matter of installing a patched ios 236, then installing priloader,
and installed installing all custom ios's using m.m.m. (this can be done in one go now , making life much easier lol)