[OS X Emacs] Upgrade to ver 2.1 -- flyspell/ispell busted

[Michael Stiber]

I just upgraded from v1.9 to v2.1. Now, when I try to enable flyspell- 
mode, I get the message:

Starting new Ispell process [en] ...
Enabling Flyspell mode gave an error

If I try to start ispell, I get:

Starting new Ispell process [en] ...
ad-Orig-error: Error: The file "/usr/local/lib/aspell-0.60/" is not in  
the proper format.

I find this rather curious, as the Aquamacs wiki seems to suggest that  
the program no longer uses aspell. So, what's the magic to get this  
working?