It looked tedious for me when I was first looking at it and after playing around I finally understood it.
1. Download the any of the V6_SuperCharger_for_Android_update*.sh.txt file and place it in the SD card
2. Download busybox installer and script manager from the market
3. Go to busybox installer and install busybox v1.18.2
4. Then open up script manager go in to menu, advanced settings, config and check browse as root
5. Run script manager and open the V6_SuperCharger file you downloaded and run as root
6. Select a text scrolling speed
7. Choose a setting (since you have GC 2.0 imoysen already provided good minfree values)
8. Now choose option 11 this will fix the OMM groupings and make your launcher hard to kill
9. Then enter option 23 to reboot your phone for configuration to work
With 3G turbocharger go into script manager, run as root, run the script, choose one of the 5 settings, reboot and enjoy your new setup!