PerAdUK
Firstly, there is no such thing as 'WSO Crewman'. A WSO is an Officer. A crewman, which is what I believe you want to be, is a WSOp and non-commissioned. Wouldn't look good if you turned up to your interview saying WSO all the time when that's not what you're after.
Secondly, have you done a search for 'WSOp' or 'Crewman'? I just did and there's plenty of threads, even in the last 2 months that should help you before going further back in time.
Finally, try asking some more direct questions - just asking for people's stories and claiming that they 'won't put you off' isn't going to work. I have heard many stories from a former SAR Winchman that would indeed put you off. But like I say, if you have any specific queries then ask them as at the moment you're asking for a tirade of sarcasm or the wall of silence you currently have...