Christine - I know you asked the question a couple of years ago. I’ve only recently arrived and I know something about this topic – so I’ll share it in case its useful. I remember being bewildered by it too once - which is the reains I’ve tried to understand it I guess 
There is nothing particularly new in Neal Douglas Walsh’s ‘gospel’. It is in the tradition of the nineteenth century American ‘New Thought’ movement which has also in different ways influenced the Course in Miracles, Landmark Forum, Lifespring, ‘The Secret’ etc . In addition, New Thought is at the moment very influential in Life Coaching, Corporate Motivational Speaking etc.
I’d summarise the teachings thus -
- We human beings and all of life are one, united as parts of the same impersonal god (so the god who has revealed himself to Neal Douglas Walsh is, in a sense, his own deepest self who is the deepest self of you and I too). When we realise we are all one we don’t feel rivalry and enmity towards each other. We wouldn’t deliberately hurt ourselves – so when we realise that we are all one we don’t hurt each other.
- The world is currently in a state of dangerous crisis and the reason for this is organised religion that teaches a violent, punitive and divisive god. This false religion is propagated by priests to perpetuate their own power and it results in human beings behaving in the image of their false god. Jesus came to unmask the false religion of priests – but the message of Jesus was in turn falsified by the priests of religion.
- Evil is a delusion that is created by wrong thinking – in reality there is only oneness and love. If we experience evil it is because we are creating it through delusional negative thinking.
- Death is not in any sense ‘evil’ – life and death are one.
I think I can leave it to readers of this site to ‘do the math’ about points 1 and 2. Obviously, it’s not orthodox Christianity (and although I’m not an evangelical I am a fairly orthodox Christian I hope). I think there are tiny grains of truth in some of Walsh’s critique of organised religion. However, in my view organised religion has a proud history as well as a shameful one; rivalry and the pursuit of power are not confined to or caused by religion; and I can only partially recognise the Christ of whom Walsh speaks in the Christ I believe in.
I get more worried when it comes to points 3 and 4. In this ‘worldview’, tragedy, suffering and evil are ‘redeemed’ by denying that they exist. I’m uncomfortable with the word ‘heresy’ to describe Walsh’s teaching/New Thought teachings here, because of the violence associated with heresy hunting; but I can say that in my considered view a denial of evil and suffering is not a good strategy for engaging compassionately with reality. I’ve found that New Thought converts can start off being optimistic about transforming the world for the better – but when the going gets tough they end up blaming other people for their sufferings– ‘you suffer because you have a negative attitude to life’ - and even take steps to cut themselves off from friends and associates whom they now consider ‘negative’ (reminiscent of religious shunnings and excommunications). In so doing they seem to reinvent some of the nastier aspects of organised religion in its fundamentalist varieties.
Most disturbing in my view, is Walsh’s teaching that Life and Death are One. In Book 2 of his Conversations With God’, ‘god’ tells Walsh that Hitler did nothing wrong in killing the Jews and so is ‘in heaven’ (Cw2 p.55) Walsh replies, “I still don’t understand how Hitler could have gone to heaven; how he could have been rewarded for what he did?” God responds to him: “First, understand that death is not an end, but a beginning; not a horror, but a joy. It is not a closing down, but an opening up. The happiest moment of your life will be the moment it ends. That’s because it doesn’t end but only goes on in ways so magnificent, so full of peace and wisdom and joy, as to make it difficult to describe and impossible for you to comprehend. So the first thing you have to understand – as I’ve already explained to you – is that Hitler didn’t hurt anyone. In a sense, he didn’t inflict suffering, he ended it.” (CW2, p. 56). Walsh has been keen to emphasize that he has been troubled by this ‘revelation’ and that he has no wish to trivialize the holocaust or to exonerate Hitler’s crimes. But I’m seriously not convinced - this is very dangerous stuff.
As a Universalist Christian I can live with the idea that someone such as Hitler, someone responsible for evil and suffering so great that it is impossible to think of or adequately name it, is somehow going to be finally redeemed and reconciled. How this will take place, how much pain and patience will be required, and over how many aeons is beyond me - as I know it should be beyond me– we can leave it as mystery in the hands of the God of Love whose Love is greater than anything we can conceive of. However, although I don’t think evil has an ultimate reality, because one day it will cease to exist, we have to take the penultimate reality of evil and suffering very seriously indeed to live with grounded compassion, learn about real forgivness, and follow the real/full Christ.
All the best (and hope this is useful for anyone in future asking questions about Conversations with God - and that my way of communicating isn’t too forbiding) 
Dick