Concordia Theological Seminary of Ft. Wayne recently placed three of the symposia papers on their site. They are:
Dr. John G. Nordling - "You Were Bought for a Price: Slave Redemption in the New Testament and Beyond"
Dr. Peter J. Scaer - "The Atonement as Expressed in Mark's Sacramental Theology"
Dr. John A. Maxfield - "Luther, Zwingli, and Calvin on the Significance of Christ's Death"
The papers for 2008 can be found here.