What version of the Homebrew Channel do you have? If you have 1.0.5 or 1.0.6, it will not be removed. If you have 1.0.4 or older, you can either first update the HBC to 1.0.6 and then update to 4.2, or update to 4.2 and then reinstall HBC 1.0.6.
EDIT: Never mind. Every version of the Homebrew Channel works with 4.1, which NSMBWii includes. 4.2 will remove HBC 1.0.4 and older, however.
Edited 1 time(s). Last edit at 01/22/2010 02:19AM by WikiFSX.