You can follow the Cfg guide in my signature and install Hermes (look near the bottom) Or install following Stomps IOS222/223/224 guide. Installing the 222 version of Cfg does not install Hermes cIOS, but uses it once you have it installed.
You should be able to use IOS249 during the installation rather then IOS236. IOS36 should also work depending on how they modded the Wii.I read many tutorials but they all expect that we fresh start the operation. They require IOS 236 installation etc. But my device has already got IOS 249 installed on it.