You're right, Designs, Christianity does have many diverse opinions on Salvation, and Echatology. I don't condem any people who may view things differently from me. I get along with them.
Why do I beleive in a divine judgement and reward? Well I don't beleive in a reward, and a divine judgement in the many ways that Christianity has interpreted it.
I beleive in Divine Intervention, but, I don't have the details worked out yet.