My API Key isn't working when trying to activate Anti-Splog Plugin

!!! This is an Anti-Splog Plugin Issue. Not Pro Sites!!!

I have copied and pasted my API Key into the Anti-Splog Plugin, and it will not activate the plugin. I would like to know whats the issue.

I also had to Install the plugin multiple times due to failure, and then eventually do a manual install. Even now that the plugin has been deemed successfully installed, your site doesn't recognize it as one of my plugins, thus the reason I have Pro Sites as my selected plugin of this post. Is something going on with the site, or am I not allowed to use this Plugin as I am only a Monthly Subscriber. Which is totally opposite of what I understood from your available information on subscriptions.