That didn't really help. I was trying to install an older version that ran perfectly until the newest Calibre update. I had been running it on Version 4.7 which wasn't labeled 32 or 64 bit. Today I installed the newest 64bit and this is when the plugin had problems. It only had problems AFTER I updated it then uninstalled it, and tried to install the older version. I ended up reinstalling the Calibre 4.7 version and the plugin showed up. SO I am not sure if it is about the 64 bit vs. 32, if its because I am running Windows 7, or if it's because of something else. Until the plugin doesn't update shelves by "page" meaning each "page" is a book on the shelf and if there is 140 books then I have to watch the counter go to 140 pages (or so I suspect), then I will stick with the older version of the plugin. However, I will keep track of updates and thanks for responding quickly