Something in your installation seem to escape the html tags. you can see it on the "noscript" part of reCAPTCHA in line 18 of your output. that is no behaviour that is caused by my plugin. on two other pages the code at these points is not escaped.
either way... if you find the plugin that does this, I think it could be the dropdown the form is in, and tell me the name I will add some code that checks for that plugin and removes the tags if it is found.
I hope that this is a suitable solution for you.
I would mark this topic as solved if it is ok. would be great if we could continue the discussion about the tags in a new topic.