Simplemodal login plugin in wpmu registeration not working!

Simplemodal login plugin in wordpress multisite registeration submit not working!

Help me~ Please~

Same question:

http://wordpress.org/support/topic/plugin-simplemodal-login-simplemodal-login-registration-multisite-is-it-working?replies=4

http://wordpress.org/extend/plugins/simplemodal-login/