I find this tutorial lacking information, at least for someone new to this. for instance:

So let get started... (single boot)

- from USB I loaded up iAtkos v7
- With disk utility choose HD and partion with 1 partition again (essential so as to not only erase drive, but to erase bootloader info from previous try outs. I've been at this non stop for two weeks! did over 15 instals os Leo and Snow Leo.)
- Customize with;

iAtkos essential system
Bootlader - Chameleon 2




How do I load it from USB? Do I mount it? Do I put it in a pen drive and reboot? Do i put it in an xternal hardrive. How do I "load up"