unavailable original Xbox DLC, Microsoft has restored the content to Xbox Live. Major Nelson made the news known via his Twitter account. We popped a copy of Halo 2 into the ol' Xbox 360 and, sure enough, all the map packs were once again available for download. Ninja Gaiden worked as well. So, if you need any DLC for your dusty old Xbox games, you'd best get it before the original Xbox Live servers shut down permanently on April 15 (just in time for taxes!).
Also, don't forget to snag the old Halo 2 maps for Bungie's final online farewell to the game on April 14. You really should be there to play one last time. It's got dual-wielding!