[HizbullaH]

I Will Tell You What Is The Solution Of Your Problem, And I Will Explain It.
Your Msn Contact List Contained 1000 Contacts Before. Means That It Is Full Now. When You Delete Them, Actually You Just Deleted Them From The List, But They Will Stay Between Your Contacts, That's Why It Is Full, And If You Sign In Using Msn 8.0 Or Windows Live Messenger You Will See These Contacts You've Deleted And There Is A Small Book Icon Beside Them. So You Have To Login Using Msn 8.0 Or Windows Live Messenger, And Delete Them Again In Order To Be Able To Login .
Or As My Bro Above Said, Sign In From Hotmail [dot] com, And Then Go To Contacts And Delete Them.

Enjoy ~!~ We Are HizbullaH Rockets On The Net ~!~