first of all thanks for the great plugin! The widget works like a charm.
I got only one big problem: when I insert the given {subscription_form} this is rendered just like text on my page and the form does not appear? What could I do possibly do wrong? I have not modified anything else. Strangely I used your plugin before in another install where I found that I have put [newsletter_form form="1"]. This install still works properly. However when I insert this this is also rendered as text? Do you have a suggestion. Thanks for your time and greets from Chile! Micha
The {subscription_form} tag can be used only on newsletter controlled text, like the subscription text. On wordpress pages, use the [newsletter] shortcode.
You can find more on newsletter documentation on this site.