Forever Dawn was just the rough copy of New Moon, but you could probably find it on stepheniemeyer.com
You can't read forever dawn because Stephine myer wrote it as the sequel to twilight before she knew it would be such a hit. Only her and her sister have read it. THe theme is aimed more for adults. It is not a rough copy of new moon, it is like breaking dawn only different because it is like the 2nd and 3rd book didn't happen.