Problems introducing new puppy to the house?

[Tika]

i have a Miniature poodle which is 3.5 months old. My puppy suffers from very bad separation anxiety and training does not seem to be working. Since i love dogs anyway my wife and me decided to get another dog, so both will have companion when we are at work.

Yesterday i got an Australian Silky Terrier which is 5.5 Months old. I liked it because its rare to find these can of breed in Malaysia at least (or what is what i think).

Brought the Terrier back and he was as usual a little bit scared, so i put it in the crate. He was very calm and was sleeping. Poodle was circling around the terrier's crate and smelling. After a while i took the terrier out and my poodle attacked the terrier or at least i think my poodle attacked. Paws to the face like punching action, climbing all over. The terrier was just no in the mood to retaliate it just moved away and my poodle just kept on "charging". I separated them and allowed my poodle to relax for a bit and then tried again and same thing happened. In the night when i tried again this time it was the Terrier that was charging my poodle they were both at it. Paws to the face and climbing over each other etc.

My poodle sleeps in the crate so he does not urine there. I wake up every 4 hours in the night to take him to pee pee. At 2am i took my poodle out and my poodle went straight to where i am keeping the Terrier (in a blocked out area in the yard) and the Terrier growled and let out a loud bark and my poodle ran away straight away.

I don't know if this is a good sign. i don't know if jumping on each other is just the way dogs are playing and establishing pecking order etc. Anyone with some expert advise is very much appreciated.

I don't want anyone of my puppies to get hurt.