I've sent a support note from the app as well, but I really need an answer FAST (writing a review) so I thought I'd try here as well.
I installed TimeLapse yesterday and this morning was giving it a try with a new panning mount (Camalapse). Unfortunately, I accidentally hit the "Disallow" button when asked if the app could have access to my photo library. I have tried everything -- resetting the iPhone, deleting the app and reinstalling it, even using the "reset" function under Settings > TimeLapse, but it refuses to save the movies because of one silly mistake. Is there any way at all to get the app to ask me to give it permission to my photo library again?
If not, then this was a waste of $1.99, since I'll never be able to use it again.