With the Laptop connected and K-Floppy running, select only one or two .TP programs to backup.
Then look in the laptop directory where they land and see what they look like when they get there.
Write a couple dummy TP programs and try backing them up, then deleting the ones in the Teach Pendant, then reloading them from the laptop.
Once I learned how to use K-Floppy this was the method I used to verify that it was working properly.
I too have some RJ robots. Will send PM.