yes, i found gingerbread.apk using ES file Explorer. But the option for root options does not seem to work on a rooted Color Nook. I get the message that this in not allowed on my "phone" When I tried to purchase Root Explorer, the site does not allow the use of my credit card. Is there another option to fix the permissions on the gingerbread.apk
make sure root explorer is 2.13.1 or higher
if you google a bit, it's not too hard to locate a copy. Read the XDA thread - installing GB keyboard is certainly possible.