Wrong. Or are you under the impression that the Apostles, upon recieveing the Holy Spirit, locked themselves in the Upper Room at Pentacost and wrote the entire NT?
Both Tradition and the Church predate the NT Scriptures.
Pray for John Paul II
But, though it took some teeth-pulling, y'all finally admitted that your Traditional doctrines have developed (with corresponding effects on the Church). In addition, the Roman Catholic Church was not set in stone and fully developed hierarchically (let alone doctrinally) by the time of the completion of the NT. So the predating argument lacks force (even assuming that the RCC is the "church" of Mt. 16:18).