Moodle Requirements
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Moodle 1.9.7+ (tested with 1.9.7, might work with <1.9.7)

Installation Instructions
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1) Move the folder gtlib_yui from the enhancedfile folder to your moodle/lib folder so that you end up with moodle/lib/gtlib_yui
2) Put the folder "enhancedfile" into your moodle/mod folder so that you end up with moodle/mod/enhancedfile

Then click "notifications" under your site administration block.

Enjoy.