When I installed Acamas 1.0.2 on WordPress 3.0.5 running as a multisite, there was no "Acamas Options" menu to set the Featured Category. This pretty much broke the theme as Acamas won't run properly without this setting.
I had to change this line in functions.php:
add_theme_page($childthemename." Options", "$childthemename Options", 'edit_themes', basename(__FILE__), 'childtheme_admin');
to
add_theme_page($childthemename." Options", "$childthemename Options", 'edit_theme_options', basename(__FILE__), 'childtheme_admin');
I don't know what the difference between edit_themes and edit_theme_options is, but maybe this has to do with multisite.