Nokia E90 and daylight savings

I have three Nokia E90's in my company that are syncing with exchange 2003 on a small business server. The issue I have is that when users enter in calender appointments on their phones and that sync's with the exchange server the same appointment shows up in outlook as being an hour in front of where it is set on the phone. Example User A creates an meeting for 9am on the phone, then User A looks at his outlook calender on his computer or Outlook web access and the same meeting is showing up starting at 10am. I am Perth, Western Australia and out time zone is normally GMT +8 but at the moment we have daylight savings which moves the time forward by an hour. When we are in Daylight savings time the phone changes the timezone to GMT +9 which is correct in theroy, but the exchange server is set to GMT+8 and its daylight savings time. I have applied all the latest Microsoft patches and updates and service packs to the server, and all the latestest updates to the phone. At the moment Nokia wants access to my network to do some "Testing" which is against company policy otherwise they have washed their hands with it and are now saying it is a microsoft issue. Upon ringing microsoft support they have given me 2 options charge me $390 to speak with a engineer to verify that my exchange server is setup correctly or get a microsft partner to check. The server was set up by a Microsoft Small Business specialist partner. Somebody please help me, I am going insane trying to fix this issue......😮