This is among the five worst applications I've ever installed on any of my Macs, ever. It almost never completes a sync, even after resetting & hour of troubleshooting; it constantly offers meaningless error messages; it duplicates some data (mostly calendar events) & destroys some other (particularly phone numbers & addresses!). Basically, it destroys what it's supposed to sync. Avoid this (free, but never updated, it seems) program at all costs.

Just paid my $40 for Mark/Space's Missing Sync for Blackberry (with which I have no affiliation other than desperation to have my syncing work)...