What about the Photo Channel? Can that be reinstalled?
Yes, it can be installed normally until 1.1v2; 1.1v3 requires that you patch the WAD (downloaded from NUS) and select IOS31 as base IOS instead of IOS61 (IOS13 and IOS31 are present in vWii, and they are used by all older Photo Channel versions [1.1v2 and olders], while IOS61 is not installed in vWii). You can do that by using CustomizeMii: tested and working.