iPhoto '11 9.2.3

I currently have iPhoto '11, 9.2.3, I downloaded Keyword Manager hoping it would help me identify and keep track of pics but I keep getting a "SIMBL Error" message saying that my version 1.5.2 (v2344) has not been loaded as a precaution. Can anyone suggest a way to delete Keyword Manager, I can't find the source under spot light and the error message comes up every time I load iPhoto.

Thanks.