S.B.
i have not used this book, so i can't speak to it. however, i would say that it's called potty "training" for a reason. i'm not sure 3 days is realistic though it might have some good ideas. and every child is different.
my oldest son who is now 4 was strong-willed, but knew exactly what was going on. i had to fight him to go on the potty. (we trained him at 2 3/4.)
my middle son who is almost 3 was more laid back, but didn't quite get it right away. (we trained him at 2 1/2)
here are some things you may want to consider:
1. let him read a book while sitting. (we had to do this with our 2nd boy. it took him a while to relax.)
2. don't take him too often to the potty. this may be why he's only going dribbles at a time.
3. if you're serious about potty training, don't look back. only use diapers at naps and night time if needed.
potty training is inconvenient and tiring for us moms, but it's so worth saving money on diapers. :0)