I won't disagree with anything. I'm too ignorant on the subject. But I do remember the "Full of Grace" thing. Don't really know what it means though.
"Full of Grace"
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God's grace covers all your sins - past, present and future when you accept him as your personal savior. It is only through the shedding of Jesus's blood that this is possible (at least thats what I believe based again, on the Bible).
Catechism 490-493. Can be found here: http://www.scborromeo.org/ccc/p122a3p2.htm#II