No problem! I hope you find it useful (despite its desire to always explain image generation in a mystical fashion).
It has become a little more challenging since the elimination of utilizing the seed and it not being fully transparent that Dall-E is completely changing your prompt before generating. That is where Art Mystic will help you out. It will provide you the meta data and the exact prompt output that Dall-E used.
If you want an (almost) identical image, you would just use the same gen_id and the exact same prompt. If you want to iterate on the image, you would use the gen_id and the exact same prompt with only slight modifications to the prompt content.
If you haven’t checked it out already, take a look at the bellow AMA. It has some interesting tidbits of info that are useful. For example, Dall-E does better with no more than 50 words and flat out ignores anything over 128.