can't get standalone to work -- XML request error: OK (200)

I just uploaded and configured CKFinder. In standalone mode I'm getting an XML error. The error displays the URL of connector.php?command=Init

I'm pretty sure I have the baseUrl and baseDir correct in the config. Though I've tried a few different paths for baseDir to be sure, including paths from the web root and from the server root.

I'm not yet sure what to do with CheckAuthentication, but for testing purposes I set it to return true.

Ultimately I want to use CKFinder with FCKEditor in Drupal 6. I'm using version 6.x-1.2-1 of FCKEditor... but I haven't yet attempted to integrate CKFinder with FCK. I'm just trying to get standalone to work at this point.

-Ryan