you do not need to delete the Tequila directory.
Create a folder you want to put the game in. I created c:\COX.
I copied EVERYTHING that downloaded/installed from original installations, including the folders structure, into the COX folder.
I opened tequila and there's an options button. Opening options button there's a section that says "Install path" and a browse button. I used the brows button and pointed to the COX folder.
Clicked okay.
Restarted tequila and it worked fine.
I then deleted the original download after I got in the game and played.
Thank You, this helped!