how to insert image from vb.net page if data type is image in sql server

i uses the following code to insert value
"dbclass.Info_Insert(drpPersonType.SelectedValue, txtName.Text, txtAge.Text, txtAddress.Text, flpImage1.PostedFile,  drpStatus.SelectedValue) "
it gives following error
 Value of type 'System.Web.HttpPostedFile' cannot be converted to 'System.Data.Linq.Binary'
so pls give me solution how to convert image to binary type and how to insert image