All the controversy is about a text that reads similar if not exactly like this:
"All vows, obligations, oaths, anathemas, whether called 'konam,' 'konas,' or by any other name, which we may vow, or swear, or pledge, or whereby we may be bound, from this Day of Atonement unto the next, we do repent. May they be deemed absolved, forgiven, annulled, and void and made of no effect; they shall not bind us nor have power over us. The vows shall not be reckoned vows; the obligations shall not be obligatory; nor the oaths be oaths."

wikipedia Kol Nidre

An excerpt from 'http://www.jewfaq.org/holiday4.htm' Yom Kippur Liturgy

Excerpts from a forum with gives a lot of insight on the subject: Click HERE!

For further research, google Talmud: Nedarim 23a-23b

10-07-08 slate.com The Anti-Semite's Favorite Jewish Prayer