I got hacked! FURIOUS!

This morning I was busy working then all of a sudden I see a popup in my msn messenger that says "we had to sign you out because you signed in on another pc". I figured someone at home logged in as me so I try to sign in again and that's when I discovered I was hacked because I got a message saying I have a wrong user name or password! I became so furious! I hadn't accepted any attachments nor opened any strange files...its just happened! And to make matters even more infuriating the hacker stayed signed in as me and added a new nick name "Reset :) ". Whoever he or she is was mocking me! Everyone at work had me still online and with this new nickname! So I tried to sign into my email account...couldnt do that either! Tried to enter my secret question...the hacker got to that too! I became more furious by the minute because I had people from all over the place on my msn list and alot of the msn email addresses were ONLY in my hotmail address book! By time I stopped caring about the emails and contacts and just because angry at why would someone do such an annoying move! But thank God I work in a company full of IT people...one of them sent a file to this hacker through msn and he accepted it which made us find out he was a Hacker who was in Egypt, hacking through TE Data internet connections, and we even got his pc's IP address! All I have to do now is go and complain to the authorities with my IT colleague and he should get easily caught. I probably won't get my email nor msn accounts back but at least this ass would get caught!