(1) should we use a crate? We are getting alot of mixed messages about them.
Yes, a crate is perhaps one of the most important things you should purchase!! Before I got Riley, I swore that he would not be put in a crate. I always viewed them as being mean and unfair for dogs. My plan was to just block him off in the hallway using baby gates. Guess what, the second day we owned him, he jumped over the gate. Thankfully he didn't hurt himself, but that's when I knew a crate was a must. Now, Riley actually goes in and out of his on his own. It really seems as though he likes it.
(2) What food should we use? Should we mix soft food with it?
When you first get your puppy, keep him/her on the same brand that the breeder is feeding. When you've decided on which brand to switch to, do it gradually over a week or two. If you switch brands all of a sudden your puppy could end up with a bad tummy ache and very loose stools. Slowly start mixing in the new brand with the older one. Gradually increase the amounts as the days go on and eventually the old one should be phased out.
(3) Should we use wee wee pads?
Personally, I wouldn't want to teach my dog to pee and poop inside when he should clearly know that outside is the place to go. So, my personal opinion is no.
(4) What can we expect? Some information we have been given is they will destroy our house if we leave her alone?
You can expect a very lovable, hugable, bundle of joy that will test your patience. Boxers are curious and they like to check things out. It's up to you to make sure that they not getting into something that they couldn't. As it was already mentioned, if you leave your boxer alone, especially a puppy, you can expect some damage to your house. A bored boxer is not a happy boxer and they will try to amuse themselves by any means necessary.