[xwiki-users] about to give in...

Hi I have noticed that there has been more activity in the last couple of days ... so, here's one last attempt. I have got to the stage where a captcha field is shown, and the page (registerinline.vm) displays the correct errors if it isn't filled in (some simple if statements) However, the user is STILL registered even if the captcha is filled in wrongly. I have searched this news group, experimented and given up ... but if anyone can suggest how to stop this my xwiki user would really appreciate it. Happy to post code if anyone's interested! thanks - hopefully Edward