from captcha.fields import CaptchaField # это из приложения easy-captcha
class UserAddForm(forms.Form):
    password1 = forms.CharField()
    password2 = forms.CharField()
 
    code = CaptchaField(label=_(u'code'))

def out(request):
    form = UserAddForm()
    return render_to_response('test.html', { 'form' : form })

<img src="/captcha/image/" alt="" />  <br/><br/><input type="text" name="code" id="id_code" />

{{ form.code }}

class CaptchaWidget(Widget):
    """widget for displaying captcha image field and a code field"""  

    def render(self, name, value, attrs=None):           
        return u'''<img src="%(imageurl)s" alt="" />
            <br/><br/><br/><br/><input type="text" name="%(name)s" id="id_%(name)s" />''' %  {'name':name, 'imageurl': reverse("captcha-image")}