[Zope] Help!!

Hi, I'm new to Zope and have just installed Zope on a Win98 PC. I'm trying to install squishdot and TinyTable, but Zope tells me that superuser has no permission to install the above products. I have created another user called 'admin' with Manager priviledges but I don't know how to logout of superuser and login as 'admin'. I have tried shutting down Zope and closed off internet explorer and restarting again but I still get into superuser. If I need to login as a non superuser, how do I do this? I have looked for all relevant documentation but can't find anything on this. Your help would be appreciated. TIA Ot Ratsaphong Canberra, Australia