Your OACS site's system password is still set to the default one!
After fixing your security problems, I'd suggest reading carefully through the OpenACS Installation Guide and the OpenACS Getting Started Guide. Both should have been installed with your OpenACS 3.2.5 software, under /doc/openacs/, or in your case http://www.edwinx.com/doc/openacs/
Perhaps the most common and useful module to get started with would be bboard, the module which creates forums like this one. Try http://www.edwinx.com/admin/bboard/ and add a new topic to get started.
and i don't seem to understand this:
"To do this, log out as yourself (there's a link at ÂYour WorkspaceÂ 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 ÂchangemeÂ). 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 firstname.lastname@example.org?