Worked when first installed, now it does nothing

App seemed to work fine first time it was installed.
A few days later I noticed it was doing nothing.
The icon won’t show up in itunes bar (maybe not enough room?) but when I can find it, I can edit preferences and the settings, but it doesn’t affect the playback speed.
WTH?

Burger Meister Meister Burger about Speed-Up for iTunes, v1.2.3