?? on Mapsource software bundled with GPS unit

[Wildswolfe]

I'm going to be upgrading from an old eTrex Summit (2002) to a new Vista HCx to get mapping, color screen, etc.  Is the "Mapsource Trip and Waypoint Manager" software that ships with the Vista HCx the same Mapsource software that is needed to get maps from GPSFileDepot into my handheld unit? Or do I need to download different Mapsource software?  Thanks for your help, this is a great site!