Sorting Datagridview except firstrow Visual Basic

Dear friends dan vb master,
 
Please help me. I'm newbie at vb. I use visual basic 2010. I have a DataGridSJF with several row. I want to sort it with ascending mode except the first row. 
 
Here is my code:

For j = 1 To DataGridSJF.Rows.Count - 2
           DataGridSJF.Rows(0).Cells("BurstTime").Selected = False
           DataGridSJF.Sort(DataGridSJF.Columns(3), Item.ComponentModel.ListSortDirection.Ascending)
       Next

It doesn't work. Can anybody help me?