mortgage payment

i signed a quit claim deed, with the agreement per the divorce decree that my ex wife will be responsible for the mortgage. she has 1 year from the court order which was may 2010, to get the house in her name. i resently found out she has not paid the mortgage for 1 year, just decided to pay the property taxes. what am i to do? i can not evict her, because the deed is in her name. she violated the court order to pay the mortgage. now she still lives there for free and the mortgage company is coming after me. how do i get her out of the house, so that i could work with the mortgage company to catch up the mortgage and sell the home. i was told i can not sell the home, because she has the deed. she choices not to pay but live in the home for free. i need help. i have petition the court, and she told them she will pay soon. what do i do?