Hi thanks again for the reply,
I have been trying both, USB to USB and USB to Midi.
Usb to Midi is M-audio one, which I have been using for a few years now, mainly to connect my keyboard to the Mac, and have had no problems at all with this lead.
I have started to use gearbox instead of Edit, but with Gearbox as well it can not connect to Tonelocker.
As for the version: Pod XT live version 3.01 USB V1.12