brightline 0 Junior Poster in Training

I am using a Login control, where the user name in supplied in the format "aaa@aaa.com"
The text is displayed in the "LoginName" control in the same format "aaa@aaa.com"
I want the LoginName control to display the first name of this user which is stored in the Active Directory.

I am using ASP.NET 2.0.

Thanks In Advance.