Hi Peter,
schau mal unter dem Link.

Die "traveller disk" Option ist nur in der Windows Version verfügbar. Kannst dich aber mit dem Kopieren der Mac-Applikation in den unverschlüsselten Bereich behelfen.

I've installed the portable versions to the USB and they work fine for all 3 OSes. I obtained the Windows version using the "traveler disk" option. For linux and MAC this option is not available, but the apps are already portable. I just had to copy the executables from /usr/bin in Linux and Applications in OSX. I've tested them on clean system where TrueCrypt wasn't installed.