just woundering what files go where in the c drive

This is from the very top post in every sub-forum for RCT3 Exchange types.

http://forums.rctgo.com/announcement-30.html

Downloading creations
We currently have over 1100 downloads hosted at our downloads center, making it a great source for RCT3 downloads. However, you can also download attachments from the forum or from other sources.

Files to be used in-game should be placed in the following directories:

Roller Coasters:
Documents / RCT3 / Coasters

Sandbox Parks:
Documents / RCT3 / Parks

Scenarios that you want to play as a scenario:
Documents / RCT3 / Scenarios

Scenarios that you want to play as a sandbox park:
Documents / RCT3 / Parks

Buildings:
Documents / RCT3 / Structures

MixMaster Shows:
Documents / RCT3 / Fireworks

Firework Effects:
Documents / RCT3 / FireworkEffects

Laser Effects:
Documents / RCT3 / LaserEffects

Laser Writing:
Documents / RCT3 / LaserWriting

Water Jet Effects:
Documents / RCT3 / WaterJetEffects

Peep Groups:
Documents / RCT3 / Peeps

Pool Complexes:
Documents / RCT3 / Pools

(for anyone using XP, it's "My Documents" rather than "Documents")

CTR's & CFR's are different than downloaded tracks and go in other places.

CS goes in C\: Program file\RCT3\Style\Themed

Always look for the readme file that is usually in with most downloads. It will tell you where to put things.