MM has very much moved to the 'buy maps online and download what you need' model - which actually works very well especially if you have multiple devices (PC, tablet, phone) - when you get the hang of it and assuming you have decent bandwidth. Means you can get the mapping only for the area you're actually interested in, but you can get several copies. But of course having a live account makes the whole thing far more intrusive - doesn't work so well in an unconnected world.
Odd that your existing installation doesn't still work though.