Did you owe them any money at the time of filing? If not - then you should be ok. However, if you did owe money on them at the time of filing - you may want to contact your trustee's office directly. Tell them that some creditors were missed and ask what you should do - you should be able to ammend the creditor list. Also let them know that your attorney has been of little help. They won't do anything about the attorney - but they should be more sympathetic.
Trustee are people. Most are in it to make sure the right thing is done.
We filed in 03 and it saved our marriage and our financial future. Take a deep breath - it will be okay.