3.
Now we start the installation process! Hooray! 
Put in your Windows 7 RC CD and reboot. If you have done all the steps correctly then it should load you to a screen from rEFIt and it should allow you select the Windows 7 CD to boot from and install. Follow the instructions until is asks if you want to upgrade or do custom installation. For the purpose of triple booting we need to select custom. Then it will show you a list of partitions to install too. Click “drive options (advanced)”. Then with the correct (Disk 0 Partition 4) selected, click Format and Ok. Once its done formatting click Next. Then go grab a drink or get yourself some lunch and sit back, because you’ll be waiting for a while now. However it will reboot a few times and when it does, be sure to select the Windows HD from the rEFIt menu not the Windows CD.
Once its done installing, it should lead you to a setup screen for your first boot up. Manually setup whatever you want your customizations of your name, comp name, etc to be. Then on boot up eject the CD and put in the Linux distro CD of your choice. Obviously for me it was Backtrack… However no matter what Linux distro you chose to install you will you need to backup the MBR (Master Boot Record) of the computer while in the Linux install and before you install the GRUB bootloader into your computer. If you don’t copy it correctly you will mess everything up and need to start from the beginning.
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I tend not to brag, but in the interest of bragging for bragging sake.. I only use one OS. Security Enhanced Linux – as endorsed by the NSA (theres an old saying “whats good for the goose..”).