what version are you useing.... 6.34 or V7
this is for v7
ive implimented this feature on my site (members area)... what you need to do is add the common.asp to each page you want to restrict (make sure you make the paths in the common.asp file to virtual (use / )....
then include it in your page ... and then if you dont want to stop guest accessing the page
add this code below the common.asp file
if blnGuest = True then response.redirect "/forum/insafficiant_permissions.asp"
if you want the admin to only access this page use
if NOT blnAdmin = True then response.redirect "/forum/insafficiant_permissions.asp"
use the same for moderators exceopt change it to blnModerator
for v6.34 download this zip which had the permissions and common.asp and a read me file about it
zip file