Master Detail layout

I've read throught the forums and am not sure of the answer to this question:
I have a order from that has a header section - ordered from, ordered by, ship to address, date, terms, ship via, etc. This info is pulled from several tables in the db (i.e. Ship Via on the form is linked to tblShipVia using idShipVia and displays ShipVia field which contains options like FEDEX 2nd Day, UPS Ground, etc.).
I would like to display the list of items on the order on the same screen so the users don't have to click a link and go to the details on another page, as well as the ability to add and edit item details on the same screen.
Is this possible? Is there a tutorial / how to that I'm missing?