exporting calendar to .csv?

Is there a way to export the calender to a .csv file so that outlook can load it?  I was looking at http://svn.savannah.gnu.org/viewvc/?view=rev&root=phpgroupware&revision=18586 and it appears to be a patch to make this possible, so I ran "svn co svn://svn.sv.gnu.org/phpgroupware" and cd to phpgroupware/trunk/ged but I can't figure out how to load/install it into my phpgroupware 0.9.16 installation.  I copied the ged directory to my /var/www/html/phpgroupware directory and went to https://server/phpgroupware/ged/ and that didn't work, gives an error saying my session couldn't be verified and takes me to the phpgroupware login page.  any ideas on how to get it installed/working in my phpgroupware installation?  thanksSent from the phpGroupWare forums @ http://forums.phpGroupWare.org