Go to the grocery store -- human baby section and buy a jar of baby meat (turkey is the mildest and therefore preferred.) Also buy a box of Gerber's Rice cereal for babies. Mix the two and add a tablespoon of warm water. With a finger, the handle of a spoon, a swizzle stick, something small, put tiny amounts of this mixture in the kitten's mouth. Give him just a bite or two every half hour or so. If he makes it through the night this little guy will be purring my mid-afternoon tomorrow and mewing for his next meal.
Jenny