Need advice right now please !!!!!!?

please give me honest advice here. my mother in law to b, is a recovering alcoholic who put my future hubby through years off hell, neglect, mental torture, which resulted in him making himself homeless & being placed in a house at the age of only 20 ! when we met he had NO relationship what so ever with his mother as she was still drinking heavily. then i fell pregnant with our daughter, which changed everything, his mother stopped drinking, although i believe it has affected how she thinks ( mental issues ). i encouraged my hubby 2 b to have his mother in his life for the sake of our daughter, but he had not completely forgave her. this had dragged on now for 2 years, and hubby to be feels like he will never get over this. she wants to just sweep the neglect and abuse under the carpet because she has sobered up. i have even let her watch my daughter which took a lot for me to do !!! we are getting married in 5 weeks time, so 2 days ago, she phones me... telling me that im punishing her ! ( don't know what she means ) as i try my best to please her, and at the end of the day she is lucky to have her son and granddaughter on speaking terms. she says " there are many things i can say about you" which really got to me as i have not done anything wrong !! i do not want her spoiling my wedding day - plus she was supposed to give us money for wedding cars 4 weeks ago and still hasn't paid up now... i feel so stressed out about it all !.. my hubby to b does not want her at the wedding, and i dont particularly want her there either - what should we do ?? i do not want her controlling my family anymore HELP