change "Image" folder to "Images"

I replaced the old fckeditor with the 2.0RC3. I used "Images" folder with old editor. The problem is that the new version can't read from it because needs "Image" (in singular) folder. How to resolve this problem? What to change inside of editor's files?
I set the 'UserFilesPath' to "/App_NAME/", so the editor can read from the "File" folder ("/APP_NAME/File/"). I dont know how to resolve problem with "Images" folder (if I rename the folder to "Image", works fine - but in real use that is not the suitable solution). Thank you in advance.