Pack it? I sent him the same folder I have been using, which I know has all the modules it needs. I even asked him to check, and sure enough the libpandabullet module was present. I also experienced a similar problem when I used PackPanda to create an installer and installed it on my XP computer. Although it could import all the other custom modules I had in the same folder with it, it would not import it.
I can forward you the file if you will PM me your email address.