Welcome (and here are some answers)..
First of all, Treo applications will not work on a BlackBerry. Your best bet is to find a BB compatible app that does the same (or similar) things as the Treo app.
Download the latest version of "Desktop Manager" from the RIM BlackBerry support web site at BlackBerry
There is an Application called Switch Device Wizard in Desktop Manager which allows you to move data from a Palm to a BB - give that a shot.