I'm not familiar with this control but you'd need to force a target attribute onto the link the tab fires. I bet there's a way to do this though because it's pretty common.
OTOH, I would argue that this may not be the best UI design. If you click on a tab you'd expect the content to load into a tab of frame not go to a new page altogether.
+++ Rick ---
>The Infragistics WebTab control uses iframes for the tabs. Doing a Response.Redirect() from a page in one of the Tab loads the new page in the Tab iframe. What is the best way to ensure the new page is loaded into the top level window?
>
>Thanks,
>Bill