HELP PLEASE! Comment/Reply issue after downloading FCKeditor.

Alright, so just a couple days ago I downloaded FCKeditor to my Drupal site. Everything downloaded correctly.

Though today I go to post a reply on a fourm topic and after typing what I wanted, I go to "Preview" and it just refreshes the page (instead of giving me the preview of the comment) and doesn't do anything. So it continues to be at the page where I was typing in the comment. So I then just hit "Submit" to see if it would go though.. and no luck.

Also I noticed is when I went to delete a fourm topic, it did not delete it. It once again just brings me back to the page I was on in the first place.

So, not sure what is going on. Hopefully someone has had this happen before and has an answer.

So please, any suggestions? I'd greatly appreciate it.