Can someone help me?

I have a 3 options Combo Box on My Form.. and below it is Confirm and Cancel Command Button.
I have organize 3 Frames Below.. ALL ARE INVISIBLE MODE..

Here's i want to achieve, After the Selection1 from Combo Box, when user press the Command Button OK, frame1 will be visible.. and frame2 and 3 are still invisible..
and when user select selection2, frame2 will be visible while 1 and 3 are invisible..

Please HELP.. thanx..

using VB6.0