I think there is a confusion with WebCal.
One day a friend of mine came to me and told me "woa dude I found an amazing calendar for my server... you can use it all over the world.. trippy huh ? .. wanna see ?"
I saw his calendar and decided to get the same one.. just for fun.
so I went on freshmeat and downloaded webcal.
Strange mine is more beautiful that his.. I told him to go on my webcal and see it..
he told me "huh this is not the same dude..."
That's the point, there is "WebCal" (programmed in perl) and "WebCalendar" (programmed in PHP)
Now, if you have WebCalendar you have to use "admin:admin" to get into the admin mod.. If you have WebCal (cgi script) you'll have to edit a config file and somewhere there is a line "the administrator"
and you have to put the name you use to get connected to your calendar.
Then you can create accounts for your users...
Hope this help...
Cu