Change active tab in ASP.net tabstrip control

[Do]

Hi,

I'm using the Microsoft IE Web Control for tabstrip.
After a user enters some data and submits it, I
want to activate another tab (and in making that
tab active, I will also show another page (from multipage).

How do I get at the tabstrip or multipage properties to set them?
Do I set the selectedindex if I want it active?

Thanks,

Do