Catholicism vs Biblical Christianity: "Sola Scriptura" is right

Since my opponent has started out with some points, I suppose I will negate them.1) Tradition = Salvation Unfortunately, it appears that my opponent has been learning from likely well-intentioned yet woefully ignorant Catholics. Tradition cannot save any more than Scripture can, and to believe otherwise is a grave theological error. On salvation:'How are we to understand this affirmation, often repeated by the Church Fathers? (335) Re-formulated positively, it means that all salvation comes from Christ the Head through the Church which is his Body:' - Catechism of the Catholic Church §846It is true that Sacred Tradition is an important component of the Catholic faith, however one cannot be 'saved' without God, and to believe otherwise is to be as a Pelagian. Some more on Sacred Tradition:'This living transmission, accomplished in the Holy Spirit, is called Tradition, since it is distinct from Sacred Scripture, though closely connected to it. Through Tradition, "the Church, in her doctrine, life and worship, perpetuates and transmits to every generation all that she herself is, all that she believes. " (37) "The sayings of the holy Fathers are a witness to the life-giving presence of this Tradition, showing how its riches are poured out in the practice and life of the Church, in her belief and her prayer. " (38)' - Catechism of the Catholic Church §782) Jesus established a Church, not a bookIndeed I agree with this statement, and I doubt that my opponent will be able to argue against it, as it is certainly true (cf. Matthew 16:18). Again, sadly, it appears that my opponent has been conversing with people who do not actually understand Church teaching, however, as any one who would say 'the Bible has no authority if the Catholic Church do not give authority to it' is wrong. On Sacred Scripture:'"Sacred Scripture is the speech of God as it is put down in writing under the breath of the Holy Spirit. " (42)' - Catechism of the Catholic Church §81I do disagree with my opponent that the Bible is our guide. Rather, the successors of the Apostles, the Bishops, are our guides (cf. Acts 20:28, 1 Timothy 4:13) by the power of the Holy Ghost. It is clear that remaining in the Bible is equally inclined towards causing people to be misled, as evidenced by the sheer volume of heresies that resulted from Protestantism. So many denominations claim to use the 'Bible alone', yet many of them disagree and contradict each other outright. 'As also in all his epistles, speaking in them of these things; in which are certain things hard to be understood, which the unlearned and unstable wrest, as they do also the other scriptures, to their own destruction. ' - 2 Peter 3:163) 'No Proof'This is, I feel, more likely the misjudgement of my opponent than that of his source. While it is true that the Bible claims to have authority (and does), sola scriptura holds that the Bible contains 'all knowledge necessary for salvation' [2]. That has not been proven. In addition, it has not been proven that the Bible was given to be the 'basis of our faith'. Those are the matters of sola scriptura with which Catholics rightfully disagree. Among other reasons, Catholics accept Sacred Tradition. Additionally, there is the practical reason that sola scriptura often turns into solo scriptura when applied. Sources:1. . http://www.vatican.va...2.http://en.wikipedia.org...