Hello,
As you haven't mentioned what distro you want MBP on, I'm going to assume Ubuntu/Debian.
First off, the native binaries for MBG/MBP are quite bad and very likely not ABI-compatible with the extender. You would need to install Wine.
Using the command line or a package manager, choose to install "wine" from the repositories. This can be done using "sudo apt-get install wine". I would also install winetricks if it isn't also installed with Wine. After you install, the associations between Windows .exe files and Wine should already be set up.
You will need the _Windows_ version of Java. Download the 32-bit JDK from Java's website. Run the installer _through_ Wine. After installation, simply running the Windows MBP launcher should bring up a slightly rudimentary-style launcher window, which should be able to download and install the files for you. The launched game may not have sound, this is fixed by reordering the preferred OpenAL libraries, which I don't have time to explain right now.
If anything is unclear or if it doesn't work don't hesitate to ask!
~PM