Create new Button for FCKEditor

Hello,

I want to create a new button in fckeditor toolbar.

I use FCKEditor on a Joomla site and a component called "Thumbnail Image Viewer (http://www.dynamicdrive.com/dynamicindex4/thumbnail.htm). Let me put a button in the toolbar to automate the creation of writing code and import at the same time one image and its thumbnail.

The text should look like this :

{mosthumbviewer:images/stories/ImageArticles/name of image,images/stories/ImageArticles/name of thumb,Legend, left}

I have everything set up, everything works except the import of image. I join the zip file with all my files. I blocked

Can you help me?

I thank you for your help.

Eric