I found it easier, but still a bit complicated, to use the EasyGPS program to enter co-ordinates and create waypoints, view them on google earth, then save them, finally using GPSbabel program to convert to 'bird format. Then copy the file to the data SD card and import them on the device. Been a while since I've done it, not sure I recall the exact steps, but it wasn't too hard to figure out. Then again, I am an engineer with a lot of computer experience.
"Alive without breath, as cold as death; never thirsty, ever drinking, all in mail never clinking."