i agree with the food reward thing. once you find a food they'll eat. get him desexed or give him a "sex toy" as my DH puts it. boof is desexed but mounts a monkey toy we gave him...its his toy LOL as for exersize a good walk/run a day is good. ours is to the letterbox and back. they are head strong and hunting dogs. but they can be really good too. boof growls at the kids when they invade his space but he knows "walk away" and will do so.

give him lost of prase and affection. and let him be part of the pack. i know my boofs spoiled and sleeps on my bed and will go where i ever i go too. give him time to ajust to being in a "pack" too. that is a huge change for a dog thats used to being a loner. its never too late (my boofs 8months old now)

GL hun.