Hi, to find any path on your server, just throw the script below in any directory (any directory that you can use CGIs in, that is), chmod it 755 and call it from your browser. It will show you the serverpath on your screen
About the .htaccess; "AuthGroupFile /dev/null" is the filename containing a list of groups and the users they include. "Null" means it doesn't exist. Not sure if it is required.
print "Content-type: text/html\n\n";
print "Your path is working and pointing to Perl version:<p>\n";
print "The complete path to this script is:<p>\n";
print "The relative URL of this script is:<p>\n";