Before you worry about the BlackBerry -- your priority is to figure out how to import the information from your Motorola i860 to the desktop PC. Sometimes it's via an Outlook synchronization (best method), but other times you can only export a CSV or Excel file. That is your first step: Export to a computer!
Once that is done, you can move on to the next step. Some people have to convert the CSV file. Try doing a search for "CSV import" using the Search link at the top, this will reveal a few useful threads.