GET A GRIP - They are doing a huge system transition and you say the product doesnt work? So they are having issues getting it up and running in the first 12 hours, big F'ing deal, wait until it is officially running and then over criticize.
I will second, third, etc what you say. I've done some massive upgrades myself, and they are sometimes no fun. I hope these guys are getting free pizza and drinks while they work. Beer later, when it's running!
EPIC FAIL.