I need to move this now to SQL Server authentication which requires the set up of logins on SQL Server, yes?
Well, the two are really not connected. The login doesn't have any bearing on the connection string that is used for SQL Server. If you have added the security tables to your default database and your application only uses a single data source connection, then the RBS tables will use this connection string (which by default it does). If you are using the connection string wizard, then you will provide the authentication type there. If you are manually setting the DataSources then you will provide the connection type there instead. The connection must already be established by the time the login occurs (otherwise it would not be able to authenticate).
Whether you are using the Connection String Wizard or supplying the connection string manually, you will need to set this up in the SetDataSources method of the AppDomain.vb or Program.cs file depending on which language you are using.
Manual
DataBasics.DataSources.Add(New SqlDataSourceItem("","server=MyServer;user id=sa;password=mypassword;database=MyDatabase;"))
Using your SecurityDialog, is there any way I can put my applications name on it? I would rather not create a custom one just to add my application name.
Past changing the source code, no. You do have the source code though and can change the title to meet your needs (or do it programmatically in code so future updates to not mess this up).
Dim loDialog as New SecurityDialog()
loDialog.Text = "Security - My Application Name"