Adding more scenery files question

Hi all,
I want to add more add-on scenery to my database. My question is this (keep in mind I'm a little computer-slow
: The read-me's all say to copy the unzipped folders into my scenery folder in FS9. Okay, that part I get. But since I already have folders called "Texture" and "Scenery", do I re-name the newest folders or copy the contents of the new folders into the two existing folders? TIA everyone.
I want to add more add-on scenery to my database. My question is this (keep in mind I'm a little computer-slow
