Selecting a field in database for a loop

[HeZma]

This is a total newbie question and I apology that: but if I have values in datatable fields A1 - A10 (which I want to run in QTP), but want to start he counting from A2 field, how do I do it? This script is for QTP flight demo:

Code:

For i = 1 to datatable.GetRowCount
Dialog("Login").WinEdit("Agent Name:").Set DataTable("A", dtGlobalSheet)
Dialog("Login").WinEdit("Password:").Set DataTable("B", dtGlobalSheet)
wait 2
datatable.SetNextRow
Next
Dialog("Login").WinButton("Cancel").Click
ExitRun

How should I modify this? I know I should somehow add GetParameter("A").ValueByRow(3), but couldn't get it to work. Thanks for your answers!