I have a treo 600, use Agendus and need information from Wesync.

I interact with multi staff in different locations. We need to be uptodate on each other calendars and address book. I have an old palm that I keed syncing with Wesync (hopefully they will update soon). I want to copy the address DB to a SD card and then copy it to my Treo. Should I deleate the old addressDB first or just copy over it? Are there any other files I should be copying over or deleating?