Can't give any more info on the interview, other than what oldebloke has stated above. Research is done before your interview though, so if you get to the interview I would say its a positive sign. Relax, be yourself. The interviewer will be asking himself, would I like to do a 3 day pairing with this guy?
Hiring currently for the Boeing. 757's and 767's shortly.
Starting FO currently at $58,800. Increases to 60,500 on May 05.
Excellent place to work, good schedule, lots of overtime if you want it. Overseas deployments during the summer are available. The boeing uk deployment is essentially full for this year though (went senior).
Good luck!