Help stopping hacker attempts!

I wasn't sure where to put this so here it goes.

Well a couple of days ago I was hacked, and well me and that hacker exchanged words back and forth in notepad. Despite his childish threats he only managed to make my screen blink, and send me a bunch of gay porn. I immediately started task manager and closed any suspicious programs, services, and processes. After closing a program called "IE Crasher" his "tweaking" (for a lack of a better word) stopped. Since then I have reformatted my computer, reinstalled all the drives including the operating systems, set up a router, changed my ip (well actually I'm not completely sure it changed still in the process with my isp), and purchased a security suite. Despite my efforts or getting "off the radar" my security suite has blocked not 1, not 2, but 435 hacker attempts. So my question is "How do you get your computer off the radar". Although receiving reports of blocked hacker attempts is a clear indication that my security suite is working. I'm fully aware that if a hacker is determined to get into your CPU ...it's only a matter of time. Any advice would be greatly appreciated...