I was so sad when I found out twallan isn't doing mods anymore however I have been keeping an eye out to see if other modders take over like Zebru since his open work open school is epic. Today when I checked on the news of the day. It looks like the only mods that wont work are error trap and UntranslatedKey. The article is found News of the day here. It looks like all the other mods have been updated. They are still found on Twallan's mods. Light at the end of a dark tunnel :D
of course now there is yet another update *facepalm* but they are updated for 1.66.