Okay, rel 22 is up (if all is well, your rel 21 should prompt you for an update automatically when you start it up).
I have added the new XWord plugin. However, it doesn't work with LRF output (not that much does with the existing Sony DLLs), nor does it seem to work with htmldoc. As far as I can tell this is a bug with htmldoc (at least the version I have); htmldoc seems to break on images that have local file:// URLs (and in fact if I invoke htmldoc with the --no-localfiles option, which is supposed to make it reject such URLs, I just get a usage error, so hrmldoc seems to have multiple issues here). The plugin will work with the built-in PDF and RTF converters, although you lose the two column layout of clues (until such time as I finally implement table support in these plugins).
Note that the URLs for sites that have crosswords generated by Crossword Compiler must have Grid.class applet elements or they won't work (confirm this by viewing the web page source from your browser). I've published one source so far that you can look at as an example; the URL is
http://www.sundaytimes.co.za//Entert...crossword.html