problems with loging in my forum

[LaSa]

hi,
i have followed the intrusctions on this web to create a forum
http://www.itcow.com/staticpages/index.php?page=2003032821191223

but i still got a couple of errors, like logining in problem

everytime any user try to login,
it will display the page cannot be displayed screen
but when back is pressed, the user is loged in

[AdamBrill]

Did you get the problem fixed? When I went to your site, it appeared to work fine...