I was warned this plugin was not tested compatible with this version of WordPress. The site fell apart in Firefox, Safari and Chrome ( could not test IE). The centered logo area & menu aligned to the left and was not accessible. THe footer was not viewable.
Even after deactivating and deleting the plug-in files, there remain two lines of code in the CSS that kept the theme from working.
Too bad, because this was a simple solution to a subscription problem, and I would have liked to incorporate it.