Here are the basic requirement for MLPostFactor to work.
Backup your Data.
MLPostFactor is still in Beta stage, although its safe and tested, you are still doing this at your own risk. For this reason we suggest that you backup your data, and install it on a second partition
We absolutely recommend that you make a clean installation and not upgrading from existing OS such as OS X Lion, we will not provide support if this rule is not followed.
Download the right version of MLPostFactor for your Mac. If you're an end user, please download the 32-bit version of MLPostFactors. For experienced developers and testers, you can download 64-bit version of MLPF. You can verify MD5 of the app with the text file inside the DMG. The difference between 32-bit and 64-bit version of MLPostFactor can be found at the Technical page.
Before you can install MLPostFactor, you need to prepare these few items
Making sure files are in place (:
Make sure you have 4.XXGB Install OS X Mountain Lion.app & MLPostFactor inside your Applications Folder before proceeding.
Preparing partition to install MLPostFactor & Mountain Lion
[i]Getting the stock Mountain Lion files patched up to support our old Macs![/i].