In reality the Catholics and Orthodox churches don't pay much attention to these extra books. Some Protestant churches include them in their Bible for "good reading."
It is good that you try to follow the Catholic and Orthodox liturgies this closely. Your statement however is not true, at least as far as the Catholics are concerned. I follow the daily mass readings and Old Testament readings from Wisdom, Sirach and the Maccabees are very common. We did a good part of the martyrdom of the Maccabees just a week ago.
November 14, 2005
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The books usually regarded as Lost by some are those writings contemporary to the accepted Gospels and Epistles, such as the Gospel of Mary.
Sorry I posted too soon. Both Catholics and Protestants agree that there are no lost books of the New Testament.