You can follow directions can't you?
Advice: keep the HoB thread open while you do it. Follow the checklist of install order. Its that easy
I read the instructions, kept the thread open and had even copy/pasted the OP into a wordpad doc...just incase! All of that was unnecessary as it really is as simple as reading and following prompts!Then seriously, read the FAQ. Twice. (Worked for me) and follow the onscreen instructions. It really is not that hard. You just need to man up and not let fear keep you from doing it.
I'm not a crack flasher nor am I on top of things with what goes into the HOB,.etc...but if you can install an application on your computer or have ever installed an OS..setup a partition...you can get ICS on your phone.