I suspect you need to configure a few system settings. In both Mac and windows, specific file types get associated with specific applications so that double clicking a file of that type launches the associated application in order to open it. I suspect that all you need to do is find out how to make those changes for the Mac OS (I'm a windows user, so don't know the exact steps) .
Thank you for your response. This has long already been set; Word and PDF files are opened automatically by their corresponding applications but it is not helping on this problem. It looks like a FM Pro cross-platform problem. Anyone else has any other idea?