What you need
How to get it working
1. Download the above driver for your 64bit OSX
2. Unpack the driver
3. Copy osx-pl2303.kext to /System/Library/Extensions
sudo cp -r ~/osx-pl2303.kext /System/Library/Extensions/
While not exactly supported by Apple the “13-inch, Aluminum, Late 2008″ version of the MacBook (Renamed to MacBook Pro) supports 8GB of Memory.
Originally purchased this Mac with 2GB RAM and Upgraded it to 4GB on day one. Had I known more memory was supported (officially or unofficially) my laptop would have been rocking more RAM much sooner.