CK Editor not showing up

Hi,

I downloaded CK Editor, and it was working just fine. I could create good looking text.

I them hired someone to work on the site, and he turned it off. He said that the existing editor is fine.

HOWEVER, I want the CK Editor.

HOWEVER, the CK Editor is no longer working! I have activated it, and it does not show up? What happened to it?

I unstalled it, and re-installed it, but it still does not work?

what should I do?

Thank you