eNewsletter not including necessary javascript

Hello!

I see that the plugin needs "widget_script.js" and probably other javscript files for the subscription widget to function properly. For whatever reason it's not being included.

* I am calling wp_head() and other plugins are including javascript properly.
* I tried disabling all other plugins.
* I tried with WP 3.7 and 3.8

Any ideas? Thanks!