The Vatican had different stances on the crusades at different times.
The crusades themselves were just and unjust at different times and circumstances.
I would suggest reading about St. Francis of Acici.
He was a Catholic monk who was well involved with the Crusades and his story exposes allot about the relationships between the two religions and the different countries and politics.

I'm still waiting Cannon.

Alex Ivanov last post says it all.
I wasn't lying when I said it could take quite a while. Remember that I single handedly run an entire gun parts manufacturer, and I just invented a new handgun mechanism which I am putting all of my spare time and energy towards patenting, so now, it could take even longer.