ASP.Net Config File Settings

Please help me.............
I have published a website named www.itorian.com, I have used there default database created by ASP.Net for logins. Using "SQL Server Management Studio Express" and "Database Publishing Wizard" I have publised my database on hosting server. Now I have faced a challange to setup configuration file named web.config. Because I am begineer in ASP.Net, I am totally confused to setup it. Without using any other config file I want to setup it. Here is my config file
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host="mail.itorian.com"
userName="noreply@itorian.com"
password="12xuz_apps"/>




























name="ReviewMembership"
connectionStringName="ReviewsConnectionString"
applicationName="/itorian" />






name="ReviewRole"
connectionStringName="ReviewsConnectionString"
applicationName="/itorian" />
























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Help me please !!

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