During the early expansion it is quite common for updates to be issued for boss mod addons faster than Curse updates. If you use DXE, then try grabbing the latest Alphas direct from:
http://www.wowace.com/addons/deus-vox-encounters/
Curse has v6.15 too, but the latest Alpha is version 8 (v615-8) and there have been 3 updates in the last 24 hours alone. One of the updates included fixing the typo that stopped the Firelands module loading!
A week or two into Firelands I'll swap back to relying on Curse for my boss mod updates, but for now I'm pulling the Alpha builds down direct from wowace.com as the updates are quicker.