Dogs bladders are not truly ready for extended holding until 10 weeks so be very persistent on taking him outside as often as possible until then. After 10 weeks you can start making it longer periods so they learn how to stay without you for four hours or so without peeing. I also find if you use the puppy training pads and slowly move them towards the door they will int ime go right to the door so you will know to let them out.
Crate training is about making the pup feel safe..the crate is like a den so it cannot be used as punishment or you will never be successful in getting him to use it correctly...place a nice warm blanket, maybe a toy in there and leave it in rooms you are in...when he is tired leave the door open so he can go in at will and lie there and know it is his place....Good luck puppies are fun :-)
Any pics??
Hugs
April