Not Catholic
I think Catholic schools in Scotland are all paid for by the taxpayer.
I expect this place doesn't pay VAT for anything, though.
Pentecostal means that they believe in superhuman powers, I think - "speaking in tongues" and healing and so forth. I've seen this "done" elsewhere, and when, unlike in the bible, they are seen to be not speaking any language known on Earth, it probably doesn't bother them. This makes it quite easy to do. There is a separate superpower of understanding what a person speaking in tongues is saying, which is rarer. I mean, -they- don't know.
http://debunkingchristianity.blogspot.com/2010/03/why-did-you-leave-fold.html refers very unfavourably to what appears to be now the little network of churches that supports the school. This seems to be at variance with other evidence.
"Some members of my family started going to a scottish pentecostal church called "Struthers Memorial Church" In Greenock Scotland which in my mind has many almost cult-like attributes. And I saw how children in that church were almost brainwashed form an early age and encouraged to fear anything form thew "world" including newspapers, TV, theatre - basically anything that didnt "glorify" god. Not the typical pentecostal church by any means - far more "radical" but i saw what kind of personality type was drawn to that church and didnt like it. Think JESUS CAMP meets the "strict brethren" and you get some idea."
The other evidence I mentioned is that the school apparently are blogging on Blogspot, maybe have just started. The science blog didn't touch on evolution directly yet that I could see, but they don't seem to be coy about biology in the natural world (and cheese making), or emphatically pious. Mainly it's pictures, taken on iPhone if you were wondering.
http://cedars.inverclyde.sch.uk/wiki/index.php?title=Blogs
Also, their prospectus on their wiki, there, at first glance doesn't mention taking care not to learn things that God disapproves of.
http://www.buying-ipod.com/TB/?P=2303 is an older report about how the school was much concerned about the amount of smut on offer in the App Store, which I think has now been substantially removed. "Their students might be exposed to apps like Amateur Swimsuit , Movie of Sexy Japanese Girl and A Hidden Cam Thong. Silly or no, the school has an obligation to parents..." And to the children. I don't think that is silly, do you?
But, what would "A Hidden Cam Thong" actually show you? I mean, if it's facing out then you see your trouser zipper, if it's facing in then it's dark. Perhaps you unzip and let the lens peep out to surreptitiously photograph people around you at waist height, for what that's worth, but I think you'd be noticed. Or you leave the thong lying around and hope that somebody else finds it and decides to put it on. But I don't think they've thought this through...