Forum OpenACS Q&A: Response to What can I do with OpenACS?

I tried to go into www.edwinx.com/admin but the index page does not show up. I've checked the permissions and they are right.

and i don't seem to understand this:
"To do this, log out as yourself (there's a link at “Your Workspace” http://yourservername.com/pvt/home.tcl ) and then log in as the system user (email of "system"). Change the system user's password (the default is “changeme”). Visit the the User Groups Admin pages at http://yourservername.com/admin/ug/ and add your personal user as a site-wide administrator."

what is a "system" email? is it mailto:webmaster@edwinx.com?

thanks