Are you wanting to create your own buttons with a program such as photoshop, and then use this instead of what appears in your current pano? Study the example code in the download package and you will understand that you must "tell" krpano where to find the buttons using the xml file.
EVERYHING must be coded into the xml file.
If you wish to use the editor.swf you must add the code to the xml file to add the editor.swf. See
http://krpano.com/plugins/editor/
for that code. In addition to this, you must actually get the editor.swf and place it into the path that you specify in the code you add.
for example,
to add the editor, I would add this code to my xml file.
<plugin name="editor" url="plugins/editor.swf" keep="true"/>
I would also have a folder named plugins and inside of it I would store the editor.swf.