For written Exam- Go through any JAA ATPL Question Bank online..latestpilotjobs.com,aviationexam.com,turbine turbine. etc. It will have 50 questions in 60 minutes.Interview will be a Non-Technical round with personality and situation based questions.For sim nothing extra if you have experience on Jets,just go through some training videos of emergency procedure videos on Youtube of different airlines.They expect you to demonstrate basic CRM,ILS OEI,normal ILS,EFATO,Weather diversion etc.Remeber to be stabilized at 1000 else go around strictly.They will fail you fly an unstabilised below 1000 approach no matter how good you landings are.Use you co-pilot and always communicate.