Gerry,
The code Edward posted shows you how to do it in code, it also shows the real need to Name your pages something other than the default, it'll make it easier for you to follow in the object picklists and easier to read the code:
with thisform.pgfMain
.pagCustomer.PageOrder = 1
.pagOrders.PageOrder = 2
.pagSupplier.PageOrder = 3
endwith
>Sorry, but I'm new at VFP.
>
>How would I do this? Thanks! - Gerry