Configuring Sharepoint Services on DMZ

We have an IIS Web Server running Windows 2003 Server.  It is not part of the domain.  Just a workgroup.    It lives in the DMZ.  We are trying to install Sharepoint services on this server and have it access the Sql 2005 server on the inside of the network.   I've opened up the Firewall ports and such and believe ports 1620,1622 and such are working fine.   When we run the installation wizard that creates the database and such.. it makes it to step 2.   It created, I believe 3 databases, but failed with the following error in the log.  I'm certain it has something to do with authentication or domain or firewall issues.  The error starts with the ****** below.


Administration v3, was successfully created.       
04/28/2009 08:23:25.17       psconfigui.exe (0x0E28)                       0x0EC4      Windows SharePoint Services         Topology                            95kp      High          Creating site  in content database SharePoint_AdminContent_a1ddb337-f740-4370-afdc-a20b1c5221ae       
04/28/2009 08:23:34.25       psconfigui.exe (0x0E28)                       0x0EC4      Windows SharePoint Services         General                             8l26      High          
********************************
Error when trying to get trusted forests and domains. Exception message: Current security context is not associated with an Active Directory domain or forest., callstack:    at System.DirectoryServices.ActiveDirectory.DirectoryContext.GetLoggedOnDomain()     at System.DirectoryServices.ActiveDirectory.DirectoryContext.IsContextValid(DirectoryContext context, DirectoryContextType contextType)     at System.DirectoryServices.ActiveDirectory.DirectoryContext.isDomain()     at System.DirectoryServices.ActiveDirectory.Domain.GetDomain(DirectoryContext context)     at System.DirectoryServices.ActiveDirectory.Domain.GetCurrentDomain()     at Microsoft.SharePoint.Utilities.SPUserUtility.GetTrustedDomains(List`1 trustedForestNames, List`1 trustedDomainNames)       
04/28/2009 08:23:34.25       psconfigui.exe (0x0E28)                       0x0EC4      Windows SharePoint Services         General                             72dz      Monitorable      Found 0 trusted forests .       
04/28/2009 08:23:34.25       psconfigui.exe (0x0E28)                       0x0EC4      Windows SharePoint Services         General                             72e0      Monitorable      Found 0 trusted domains       
04/28/2009 08:23:34.28       psconfigui.exe (0x0E28)                       0x0EC4      Windows SharePoint Services         Topology                            95kq      High          Creating top level site at http://rda-quality:45193/       
04/28/2009 08:23:34.37       psconfigui.exe (0x0E28)                       0x0EC4      Windows SharePoint Services         General                             72jz      Medium        Creating site: URL "/"       
04/28/2009 08:23:34.89       psconfigui.exe (0x0E28)                       0x0EC4      Windows SharePoint Services         General                             8gam      Medium        Recalc needs to happen. Real = 0, Cached =-1, WFE