CT MOD installation help please

[Myn]

Hello,
First post here. I have had CT MOD on my home pc, as well as my laptop. For some reason the latest patch of WOW (1.7 I believe) removed my mod.

I have dl's the new CT_Core_1[1].77.zip to my desktop in zip form. opened it, ctrl A then and "ctrl C" to copy.
The opened to c/program files/wow/interface/ addons folder and pasted files.

When I go into game, I do not have any add on button in the "enter world" screen, and in game no ct mod.

I have read the FAQ, and tried to do this about 100 times over the past three days. I know I must be doing something wrong.

the CT mod files have 87 files, starting with Bindings.xml and ending with white circle.tga

I am not the most technically sophisticated, but I should be able to do this...
any help would be appreciated.

Am i not opening the zip correctly?
Should I be creating a new folder within addons?

Thanks