How do I REALLY delete MSN Messenger??

I was using MSN Messenger and all of a sudden I got kicked out.
Big deal, happens all the time. But no matter how many times I tried to log in again I couldn't, it says the system is not available now or some non-sense like that. I tried logging in with another account and it worked.
So now i want to REALLY delete messenger and install it again. Like as if it was never installed in my computer, erase all the conversation histories and the display pictures I added and all of those things. How do i do that?

this thread should help you a lot:
http://www.mac-forums.com/forums/showthread.php?t=49528&

-chris

i use cleanapp on my mac i really like it takes a lot of hassle out, its cheap to buy and works really well i think, i had the same problem as you check it out

http://www.synium.de/cleanapp/index.html

Take a look at my article on Macforbeginners.com about deleting Applications: http://macforbeginners.com/page.php?id=173

To really delete MSN Messenger from a Mac, I had to do the following:
1. Normal uninstall first.
2. After this, I searched for "Microsoft" with Spotlight, and after that I manually deleted the following file:

com.microsoft.Messenger.plist

...and the following folder:

Microsoft Messenger Data

After this MSN couldn't detect any previous versions (or accounts) when re-installed. (Not that re-installing is recommended... ;D )

NOTE: Using advanced uninstall apps didn't seem to work for me.

I use AppTrap its free and it works really well. You just drag an app to the trash and its asks if you want to delete all related files.

MSN Messenger issues here too.

Same dilemma. Can't find a way to get totally rid of MSN's Messenger. Can anyone share the method used to get it out of my iMac?

Unable to find it on my HD. MSN must label it as something totally irrelevant.