I am having an issue similar to that of the previous poster. I originally put rev 17 base 38 in slot 248 and changed the meta.xml file but Mighty Channels would open through the Homebrew Channel but not run games. So I put rev 17 base 38 in slot 246 and changed the meta.xml file. Loading Mighty Channels through Homebrew Channel now works as well as all the games I tested with the exception of Swords & Soldiers but neither forwarder channel works. After selecting the forwarder channel I just get a blank screen. I would appreciate any suggestions you have on what to do.
are you using the meta.xml example from the first post...
are you sure you have the folder named right.../apps/mighty_channels/boot.dol or /mighty_channels/boot.dol
also check that you have ios58 installed