Is the old version still around? If so, you might be able to install it instead.
I would look for it on Freewarelovers first. They often have older versions of apps.
P.S. It's great to see you back, solarbanjo! And multiprose -- if I haven't said it already -- I'm really glad you opted for the PE!
Edit: I checked, and Freewarelovers does have Catch Notes:
http://www.freewarelovers.com/android/app/catch-notes