how do I upgrade from 10.6.8 to 10.7
I need to upgrade my MacBook from Snow Leopard 10.6.8 to Lion 10.7 before I can upgrade to the latest Mountain Lion OS...but I can't find where to download Lion 10.7...does anyone know where I can find the download from Snow Leopard 10.6.8 to Lion 10.7? thanks.
MacBook Pro, Mac OS X (10.6.8)