It's a mistery, but i've seen some evolution,
2- saw the Security Override maintenance page for few mins...
3-apache installation successful
4- cpanel misconfiguration page (i believe)
then now it's step 3 again, "Great Success !Apache is working on your cPanel® and WHM™ Server"
So i guess they have some trouble to get it back online but it look's like they're working on it...