Lets assume all this is on the up and up.
If you search around the forums for books, you'll find the lists we've all made.
Look up the different frameworks for hacking. There are steps.
Step 1, step 2, step 3, etc.
usually the first step is enumeration.
But if you really want more hand holding, look on amazon for books with Hacking in the title.
I'm all for teaching people, I'm all for spreading knowledge. I'm not about helping people get busted for being stupid.
Mannol: you have to understand, when you get into computer security / pen-testing you will develop a sense of paranoia. Someone showing up the first time asking how to I hack this without giving us detail, is going to get us to be leery. We're worried about being targeted by corrupt people.
Also a lot of what you're probably wondering has been covered in this forum in multiple places. a little bit of searching will do wonders for you. Look around some more. Learn to search, not just the search bar up top but with google. Being able to research is key to the first step in doing "hacking".
if you want to learn, and build up skill, build a lab. you can do it fairly cheap and easy, and there are lots of discussions on that in the forum.
If you want to really have fun, and test your skill. You and your buddy can set up labs, and then set up a vpn connection between them. Then have fun trying to hack each other.
remember being ethical doesn't just mean you have permission to do the hacking. You have permission from the proper person to do the hacking.