Hi,
If I understand correctly, it sounds like you want the postback to be sent to a content page and you want to be able to redirect the users to another page. Firsty, you'll need to hook into the click event handler of the button. You can use FindControl to find the control in the masterpage and then add your own event handler.
Once you have the event handler hooked up, you simply need to call either "Server.Transfer" or Response.Redirect to navigate the user to another page.
It would be something like:
Page_Load:
Dim b1 as Button = Ctype(Me.Master.FindControl("Button1"), Button)
AddHandler b1.Click, AddressOf MyClickHandler
MyClickHandler:
Response.Redirect("<newUrl>")
--
Danny
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