[RESOLVED]-how do I select a certain tab index

I am at a lost on how to select a text box after performing a command.

I have a form that puts data on an excel worksheet and to make it a little easier I want the program to return the txtNIIN box so all I have to do is continue working instead of having to click on the box every time. But all it does right now is it remains on the cmdADD button. I need this program to be able to do this and my deadline is in 4 hours.
oh and google didn't help me much -.-

txtNIIN.setfocus ?

Thank you.. You were a Huge help :)