Xanthia has no support now that I can find... although I did find something in Spanish...
here's the error I am getting
Fatal error: Call to undefined function: display_greeting() in /home/shevli2/public_html/edgedancers/modules/Xanthia/pnclasses/Xanthia.php on line 295

Here's how we got to this point...
I went into Fantastico the other day to install another script and saw the upgrade button next to my site (edgedancers.com) so I decided I ought to go ahead and let it run the upgrade. It timed out during that process and completely jacked up the site, so I was forced to back up the database and reinstall per tech support.  So I backed up the database, reinstalled postnuke, and then couldn't import the database because it kept timing out again. So tech support imported the database for me... I installed my old theme and got most of it running. Went to reinstall phpBB2 and was told that auto-theme (the theme type I am running) has known issues with phpBB2 installs and to switch to a non auto-theme theme. So I went to use the pnDefault and got that error. I tried upgrading the install of Xanthia, but it still pops the exact same error... I contacted tech support and they sent me here.  Xanthia is part of the latest standard version of postnuke.  I'm a little frustrated over this and have been working on it for 2 days. Any help is greatly appreciated