I installed this plugin by downloading it first, then uploading it to my site using the built-in plugin installer in the dashboard. After activation, I saw the following message at the top of the screen:
The plugin generated 260 characters of unexpected output during activiation. If you notice "headers already sent", problems with syndication feeds or other issues, try deactivating or removing this plugin.
Not sure if this is a problem, but I thought I'd let you know.