UE3 Halp! - Missing UT3 Files

[Psy]

So I've picked up UT3 and I've had a little play around with the editor, learning from some tutorials.

One thing that I'm completely stumped about is when they mention opening files within the UT3 folder such as...

Epic saved most of their skydomes in one package. Go to File->Open (in the generic browser), and load

C:\Program Files\Unreal Tournament 3\UTGame\CookedPC\Environments\UN_Sky.upk

I can't find them! All I have are two folders, CustomChars and CustomMaps, and a file called LocalShaderCache-PC-D3D-SM3.upk.

HALP!

[dux]

They should be in my documents/mygames/ut3/blahblahblah