So you were using the ancient 165 AMP on Mu 1.1.1? That's from about November ... and it worked?? ... ishoos, we've all got ishoos!
And yeh, tmce is an ongoing nightmare, the latest version in Wp 2.1.2 has a realpath bug that kills the external buttons for all the plugins like vipers, image manager and anarchy, and sometimes the entire editor depending on your php/server combo. It's a fast moving target but the fix is in the pipeline for WP 2.1.3 ...
One thing you could try is in line 28 of anarchy_media_player.php add a "bold" plugin as in:
function anarchy_mce_plugins($plugins) {
array_push($plugins, "-anarchyswf","-anarchydcr","-anarchymedia","bold");
return $plugins;
}
Just had to add that back to my subdirectory Mu on OSX Server ... don't ask me why it might work cos I don't know! Something to do with realpath only returning false on BSD and mebbe Fedora systems if the last plugin call is missing ... or something. Apparently fixed in the newest version of tmce ... which hopefully won't introduce another round of bug swatting.
How are you going with the magical disappearing options page?