For what matter the up-to-date QBAM Basemap, it would be easier if they were posted on the map database on the wiki. Nobody wants to dig out a thread to find updated informations.
That said, are you sure it's up-to-date? These were posted a year ago, and the basemap I use was posted more recently.
In fact, it lacks some corrections I made personally, but maybe it's a retro-update.
I'm quite sure it's not updated, in fact I've been digging in the last thread for a time.