Presence plugin - change icons (directory)

Hi, I install Presence plugin on my localhost Openfire server and i need change default icons to my icons.

Directory to my Openfire server: C:\Program Files\Openfire

WWW server Wamp: C:\wamp\www

I want to use this script, but does not work, the icon does not change.

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What is the correct path to the icons on my localhost machine?

**Thank you
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