How do i find an IP address?
ip address exisit in this rang [1-255].[1-255].[1-255].[1-255]

if you are connected to somone you can run netstat
start->run cmd[enter] *in the black box now->* netstat[enter]

you cant just grab X persons ip by saying give me their ip, you can trace connections though

Theres this guy that is doing X how can i get his IP?
there are several tools on websites for things like this, personally i like to do a tracert/traceroute first

tracert #.#.#.# (# == one of the numbers of the ip)
traceroute #.#.#.#

this shows the general path along the internet to that persons computer (or where the connection is conneceted to
next to the ip in results there may be a domain name suffix and you can use that to get their isp
"gar6-p3150.cgcil.ip.att.net" this was the last one with a domain on the trace to my house from school, i know that att.net (used to be @ home and is now comcast.net) and right before that is an il (illinois) and cgc might mean a chichago routing center or be nothing, idk

im done there, isp comcast


I have the IP of this idiot, how can i get back at him?
contact their isp, send them a letter saying there is some suspisious activity from X ip and ask them to look into it
*jail warning* dont try and do anything directly, withouth their prior written permission or it is illegal

I keep getting e-mails from this IP what can i do?
email the box's owner, and isp so that they can keep an notify the owner and get it cleaned/removed from the service untill it is cleaned

hope that covers the questions here