CT,

In your original question, you asked why it the builder was trying to log int the server with user id "sa". You actually do have the "sa" password specified in the web.config file you posted:

<databases>
   <add key="Northwind\Connection" value="server=(local);uid=sa;pwd=;database=NorthWind;" />
   <add key="Northwind\DataAccessClass" value="DataAccessSql" />
   <add key="FraudCE\Connection" value="server=(local);uid=FraudCEUser;pwd=darkstarfraudce;database=FraudCE;" />
   <add key="FraudCE\DataAccessClass" value="DataAccessSql" />
  </databases>
</configuration>

Regards,