just wanted to point out that it seems to me as if there are multiple errors in running this plugin with WordPress 3.0.1
and, probabily not all are due to the WordPress version.
a an example: browsing the plugin source code i found multiple errors in which option arrays were used before checking if they were used (all those lines of code in which the author uses them to populate input field values using ternary operators)
i think a good complete code review is due. otherwise it would be a wonderful plugin, but it's useless, in these conditions.