You might be able to try the Rebooter function on Gecko OS. It probably won't work but it's worth a try. To use it, start Gecko OS, Edit rebooter options, set "Remove copy flags" to on, then start the rebooter. Hopefully, you'll be able to copy it back again.
You can use Waninkoko's cIOS DVD Dumper, but it takes way too long, compared to a USB loader.
Here it is, anyway, if you still want it: http://dl.qj.net/wii/homebrew/wii-dvd-dump...om-ios-v12.html
While it's great that 4.3 users can finally reinstall the Homebrew Channel... Hmm, I don't know. I'm not really feeling the new look.
If it came with a matching banner, however, it would look great!
You might want to get rid of that website, or you'll be getting banned very quickly. Ah, much better.
You'll need to use WiiGator's cMIOS, based on MIOS v8. You can get this using MIOS Patcher.
Also, has your ISO been shrunk?