Dumb question

Hello all,

I have a dumb question, but here it goes.

I have installed fckeditor as it says in the instructions, but can seem to locate how to run and use it. So I how do I edit a page?
I know html and php So I dont mean like add text, images ect, but how to edit a page on my server. LIke whats the path to edit and save it back to the server?

Can someone post a couble of pointers?

Thanks