grumpsgarden,
we had the same concerns with our hand-reared piglets, they seemed very slow to take to food & water.
water down the milk, persevere, be patient, use a small bowl .... and above all, leave the piglet slightly hungry & leave him alone with the water bowl! Of course, little Lucky is always way behind her sister, so we'd give her more milk and less water.
One day when you think it'll never happen, he'll take to it so don't panic