The Aye-ayes as far as I know are not in Clore, no. They live in what was the old gorilla house, the big white Tecton one which used to rotate. It had Koalas in back in the early 90s and now its home to Aye Ayes and Ring-tailed lemurs. That's how it was in 05, don't see why it would have changed and certainly not heard owt since.
Still home to Aye Ayes(inside) and Ringtailed Lemurs(outside)
Bat cave in Nocturnal basement section of Clore Pavilion is still there- can't remember if its exactly the same as previously or ha been altered though ,as its many years since I last went in there.
Someone asked if marmosets in the cages are rotated with the open rainforest. I'd say almost definately they're not.