2.6.4.1 - no textarea, just page not found!

2.6.4.1 - no textarea showing, just "page not found".

If I check the iframe location, it says

http://ROOT/fckeditor/editor/fckeditor. ... ar=Default

But the fck folder location is:

http://ROOT/SITE/ADMIN/JS/fckeditor/...

Why is it doing this? I didn't change anything in the config file.

Also, is this correct? I want it to convert automatically textareas by classname, so at the bottom of fckeditor.js I put:

window.onload = function()
{
FCKeditor.ReplaceAllTextareas( 'fckeditor' ) ;
}

Correct? I don't see any good sample code showing how t do this common task.

Thanks.