Just downloaded and installed the plugin today - looks like a great tool.
Created my first form but when I attempt to embed the form in a page the popup/model box appears - I choose the form from the dropdown then click the button to embed but nothing happens the popup just sits there and code is not inserted. Manually adding the shortcode works. I am using the Multisite version of WP 3.1
Also - do i only enter the licence key once in a multisite setup - when I go to a sub sitethe forms setting page dislays the subscribe for support notice