New buttons not showing up on toolbar

I have made the following modifications to the fckconfig.js (changes in bold)

FCKConfig.ToolbarSets["Default"] = [
['Source','DocProps','-','Save','NewPage','Preview','-','Templates'],
['Cut','Copy','Paste','PasteText','PasteWord','-','Print','SpellCheck'],
['Undo','Redo','-','Find','Replace','-','SelectAll','RemoveFormat'],
['Form','Checkbox','Radio','TextField','Textarea','Select','Button','ImageButton','HiddenField'],
'/',
['Bold','Italic','Underline','StrikeThrough','-','Subscript','Superscript'],
['OrderedList','UnorderedList','-','Outdent','Indent','Blockquote','CreateDiv'],
['JustifyLeft','JustifyCenter','JustifyRight','JustifyFull'],
['Link','Unlink','Anchor'],
['Image','Movie','Flash','Table','Rule','Smiley','SpecialChar','PageBreak'],
'/',
['Style','FontFormat','FontName','FontSize'],
['TextColor','BGColor'],
['FitWindow','ShowBlocks','-','About'] // No comma for the last row.
] ;

and i added this line to my fcktoolbaritems.js file:

case 'Movie' : oItem = new FCKToolbarButton( 'Movie' , FCKLang.InsertMovieLbl, FCKLang.InsertMovie, null, false, true, 37 ) ; break ;

But there is no new button showing up in my tool bar. What am i doing wrong?