idk whats going on. still cant flash mods or roms

[oranges311]

ok i know all about the wiki and ive read it and it didnt help me so please dont tell me to read the wiki.

as far as i can tell i have rooted my phone. i downloaded a clear cache app that says it requires root and it worked but when Im in custom recovery the text is blue which it should be green right?

I was trying to flash this for starters:

http://forum.ppcgeeks.com/sprint-epi...r-pop-ups.html

So I guess I just really need someone to please give me a detailed step by step list of what I need to do/download and where the files need to be stored in order for everything to properly become rooted and where i need to store the files in order to flash also.

and if someone can please tell me what a kernal is and wether or not i need to do one everytime i flash a rom id appreciate that also.

thanks to who ever is nice enough to break it down for a needy noob!!