Is FCKeditor what I need? Please let me know

Hey,

So i downloaded FCKeditor and was trying to get everything going but was unsuccessful. Before I go further, here is what I want. I want greatly appreciate if you would let me know if FCKeditor is right for me...

Assume my website is at http://www.mydomain.com/index.htm
I was looking to implementing an admin side to give people access to edit a few things here and there in the website...
Assume it falls under http://www.mydomain.com/admin/index.htm


What I would like is to have the admin side be able to edit the pages on the website and post back to the same page ofcourse. (an update!)
I would want to replace some of the text inside http://www.mydomain.com/index.htm with a text editor so that I give people privilege to go ahead and do that. Please let me know if this is what I should be using. I tried getting it setup and tested installation. That was successful. But I didnt know where to go from there and I thought I would ask if this is what I should be using!

Thanks!