Creating custom dialog windows; resources?

Hi,

I am new to developing custom applications for fckeditor and was wondering if someone could point me to documentation and also some further discussions on developing a custom button, dialog window, etc. My plan is to setup a flash gallery based on the existing folders in the image admin. The user would click the icon, select a folder and then the embed code for the swf would then be placed inside of the editor and some xml would be written for the swf to define the images. This would be developed in coldfusion.

Thanks!

-Tony