Okay, since you posted to the Tototek forums, too, I'd suggest searching for your answers there. Check older posts on those forums, as there are lots of people with the same problems. A quick hint for the 0KB free problem: it's a known bug in the shitty Tototek base software that doesn't reset (?) the parallel port after programming once. So between programming sessions, you actually have to quit the program, put your computer in sleep (or hibernate) mode, and start it up again, connect the PCE-Pro, and start the software again.