Vatican being a sovereign state, it's really none of your business. The Vatican has an astounding total of 450 citizens, i.e. public servants, cardinals, diplomats, and the Swiss Guard. It's also not a Democracy, so even in the unlikely event that you happen to be a concerned Vatican citizen on top of being a slashdotter, it's really none of your business either.
Faith in Christ does not require you to be catholic, there are lots of protestant people. And being catholic only requires faith in God, Christ, whatever doctrine they have in their religion. As is my understanding, Christianity is essentially based on the premise that this is not the "real life", but rather a temporary earthly life, where you must prove yourself before God before being allowed into Heaven or whatever. Humanity is generally portrayed as being essentially sinful, and only God has the power to judge people according to whether or not they can control said nature and atone for their sins.
If the fact that Bishop X or Cardinal Y are fucking children lessens your Faith, then you're not a true Christian with an appreciation for Christ's essential message and a context of 2000 years of worship vs. X people and Y years of pedophilia. If you wish to become a Protestant or an Atheist, well, it's certainly your right to do so, but you should probably realize that it's not the PEOPLE you should be concerned about, but rather the Catholic doctrine or the Bible, or whatever separates believers from non-believers.
(I'm Agnostic, from a Catholic country, but never baptized or otherwise raised by religious people)