Toolbar customization

Hi - first GREAT product. I am having one problem. I want to limit the amount of functionality available on the toolbar. I've tried to create a custom toolbar following the info in the Wiki. I added a toolbarset called"Custom" in the fckconfig.js file per the instructions in the wiki. I am using PHP, so I added the statement

$oFCKeditor->ToolbarSet = 'Custom';

where I create the instance of the editor. When I load the page, I get the message "Toolbar 'custom' does not exist'". Figuring that I did something wrong, I went back to basics - I simply tried to change to using the "Basic" toolbar that is there. This worked. Then, I tried to alter the basic toolbarset definition to see if that would work. The page still loaded, but with the original "Basic" toolbar configuration. I cleared the cache and tried again -same problem. The combination of the page not finding the "Custom" toolbar I created in the .js file and not finding the changes I made to "Basic" leads me to believe that perhaps there are .js files in multiple locations and I am changing the wrong one.

Does anyone have any insight into what I am doing wrong?? Any help would be greatly appreciated.