It's weird, really. Different faiths are not sold on whether or not atheists can go to heaven.
Teminite, assuming a Catholic god is real, you would go to heaven so long as you aren't the kind to go around spitting on people for being Christians or mudering people or any of that (Faith + Works- at some point, works ought to be equal to the two combined)
If a Lutheran God is real, you're done for.