Don't feel bad man you're doing a good thing. I would donate myself but I need to also believe that the creator is interested in this mod so he needs to at least pop in and say hi now and then. Lots of mods have died in Minecraft since I started. My favorite mod from alpha was BiomeTerrain by bucyruss he was a total boss but even that mod died eventually. I'd hate to see this die but until the creator touches base with us I won't donate. But I am very willing to do so
He's not 100% inactive.... he was active on the forums 11 hours ago.
I have no idea what that entails, other than he's around...
Hopefully he will give us some insight soon.