Well I went searching and english bull terriers are the same thing as Bull terriers.
Your best bet on introducing your puppy to your older dog is to do it on neutral ground like at a park or what not. Initially you will needt o have the facilities or the ability to keep the dogs seperate when you aren't around to supervise them. Especially if Stella doesnt' really like other dogs, which occasionally comes up in bull terriers. Have both dogs on a leash held by 2 different people so you can seperate them if needed. And remember to give your older dog special time so she doesnt' think she's being replaced by the puppy.
***Edited By: Minniyar on 2/26/2005 12:38:58 AM*** Reason: change