Plugins are installed in the sub-directory "plugins" of what IEPro installed and must be named as "plugin.js".
If there are additional files related to the plugin, it can be installed in the same directory as the plugin. The additional files can be quoted as "ie7pro://pluginpath/[filename]" in the script.
Structure of a complicated plugin:
plugins/
|-- accuweather - Plugin name
|-- css - css dir, maybe refered to as ie7pro://pluginpath/css/
| `-- findLocation.css
|-- findLocation.html - configure UI file, maybe refered to as ie7pro://pluginpath/findLocation.html
|-- images
| |-- 01.png
| |-- 02.png
| |-- ...
| |-- 44.png
| `-- magnify.gif
|-- js
| `-- findLocation.js
`-- plugin.js - The main file, must be named as "plugin.js"