No effect... I have transferred the deb file through mass storage mode, but still the same effect. I seems like TruecryptGUI isn't recognized as a program or something...

edit:
I just checked if I can still run the program straight from QT without packaging, however, I get the error:

chmod: /usr/local/bin/truecryptgui: No such file or directory

Maybe it has something to do with the errors after packaging? Only I have no idea why it tries to chmod a directory /usr/local/bin, because that doesn't even exist...