Hi Chinni,
First of all I'm sorry to hear you didn't receive your results after such a long time......I don't mean to sound harsh but you surely should have called them up at ADA and told them about your problem. Anyways, Don't worry call them up now and tell them about your issue. They surely would be able to tell you what went wrong. You have to act fast in the event that you want to apply this year.
they can be contacted at
001-312-440-2500 (or)
http://www.ada.org/ada/contact/index.asp
If they tell you that they already sent you the report then ask them to fax you a copy if possible.
call them up ASAP.
take care.
best wishes with everything,
Elementz