I remember playing this
years ago. And really liking it. IIRC, I started with volume 4. The idea was that it would be a regularly updated mod (made it to 6) and each update would mean a new edition of the Modern Adventurer had been published.
It's a pretty entertaining, light mod. You can go and see the MA's offices and talk to some of its editors and contributors (some of whom should be familiar to a lot of people), as well as read the Modern Adventurer itself. The text was pretty light-hearted but also led to some rather interesting quests.
The one shame was that the mod was set-up in such a way that it was assumed you'd read all previous editions, it would've been good if when first loaded only version 1 was available and then over time more were made available.
I'd recommend it.