[magnus]

If you're having a problem with themes, chances are the automatic template edit isn't taking effect. Simply make the edit manually.

In the register template:

• FIND:
  

  			$imagereg

  REPLACE WITH::
  

  			<script type='text/javascript'>
  			var RecaptchaOptions = {
  			   theme : "$vboptions[recaptcha_theme]",
  			   tabindex : $vboptions[recaptcha_tabindex]
  			};
  			</script>
  
  			$imagereg

And, just for good measure you might want to disable the automatic template edit plugin. In AdminCP > Plugins & Products > Plugin Manager look for Automatically modify register template (located under reCAPTCHA!vB) and uncheck the box, then click "Save Active Status".

That should do it!