First time installing DNN (I'm running DNN4) and I'm getting an error that I can't figure out.

Here is what I've done so far:

1. Extrancted files into inetpub/nuke
2. created application in IIS, gave aspnet user write to dir
3. created db in MSDE with user DNNuser and a password.
4. Entered server, uid, pwd values into release.config and renamed to web.config
   

pull up http://localhost/nuke and recieve the following error:

Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: The connection name 'SiteSqlServer' was not found in the applications configuration or the connection string is empty.

Source Error:

Line 235: type="DotNetNuke.Security.Role.DNNSQLRoleProvider, DotNetNuke.Provider.SQLRoleProvider"

So--not thinking--I deleted the sql server 2k5 express conn string thinking "I don't need that because I'm using 2k" but thats what threw the error.  I just pasted what you've got above however I am still unable to connect to the db:

DotNetNuke Upgrade Error

The Assembly Version ( [ASSEMBLYVERSION] ) does not match the Database Version ( [DATABASEVERSION] )

ERROR: Could not connect to database.

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

My confusion, I think, has to do with the  conn string for sql 2k5 express.  Here is what I have (uid/pwd removed but verified as being correct in db and applied as dbo to the dnn database)

<connectionStrings>
    <!-- Connection String for SQL Server 2005 Express -->

    <add
      name="SiteSqlServer"
      connectionString="Data Source=.\SQLExpress;Integrated Security=True;User

Instance=True;AttachDBFilename=|DataDirectory|Database.mdf;"
      providerName="System.Data.SqlClient" />

    <!-- Connection String for SQL Server 2000/2005
    <add
      name="SiteSqlServer"
      connectionString="Server=(MyServerName);Database=DotNetNuke;uid=DNNUser;pwd=******;"
      providerName="System.Data.SqlClient" />
   -->
  </connectionStrings>