> What is the recommended way to configure emacs+mew to use this version of
> gpg?
Sorry. I forgot to say this. You should put the following into your
.emacs.
(setq mew-prog-pgp "gpg2")
I guess you have already the following. If not, you should add it, too.
(setq mew-prog-passwd "gpg2")
--Kazu