problem: I own a sprint treo 650 and was informed to upgrade the firmware per web site. I use OS X and missing sync.

Before I did the update I synchronized with entourage 2004. When I had completed the upgrade which causes a hard reset and then resynschronzied with entourage all my contacts and calander entries were replaced with the limited contacts from the preset address from the treo and all my entourage contacts and calander entries were deleted.

How can I access a backup and restore?

Does missing sync have its own backup?

If I can? I can get to the palm desktop which I do not use and there are old entries but is there anyway to get at my critical entourage data? Please help for now and provide information for the future.