I've installed Atahualpa 3.3.2 for a friend's blog. I installed wp-email, and while it does work and does send the email, this error appears in the final box:
Warning: htmlspecialchars_decode() expects parameter 1 to be string, NULL given in /usr/home/web/users/a0029046/html/wp-includes/compat.php on line 105
Warning: htmlspecialchars_decode() expects parameter 1 to be string, NULL given in /usr/home/web/users/a0029046/html/wp-includes/compat.php on line 105
I have this same plugin working fine, with no NULL message at all, on my Gazette site, where I'm using the older version of the theme. So there must be a problem with that compat.php file, yes? I'm afraid to substitute the older version of that file for fear I'll mess things up big-time.
Oh, and I found the same weird formatting problem as the other people reported. If you choose the popup window instead of stand-alone page, it looks much better.