[Zope] - I can't access the 'manage' page

I have been trying for some time now to get Zope up and running, but I've had only minimal success. Every time that I try to access the 'manage' page, Zope tells me You are not authorized to access this resource. Username and password are not correct. I have played with the passwords and host access fields in the 'access' file, but to no avail. I have also tried changing the permissions and ownership of the 'access' and var directory. I am using the RPM's that I found through the Zope site and Apache 1.3. I set up the mod rewrite module as per the file INSTALL.txt. If you could give me any suggestions I would appreciate it Tony