GPS Data Logger Software - BT747

Hi,

 I own a holux 245 data logger, but now they can show you the last trackpoints that you were in, and where you currently are relative to them. This is a great feature, and I thought that once I could upload a few waypoints or trackpoints into the device, I could actually use it to navigate to the waypoints along my planned track. Any way I could use bt747 for uploading data into the device? Thanks