I think it will be better to create a custom post type for partners, called “partner”.
The problem is that you have on the same page another form with the same id (like registerform, loginform or lostpassword). To solve this, change in simplemodal-login.php and default.js (or the js for your selected theme) these ids: #registerform, #loginform and #lostpassword in something else like #sm-registerform, #sm-loginform and #sm-lostpassword.
And i advice you, Eric to change that in a futur version of the plugin, because sometimes you need to have and a page with register or login, not just a nice popup.
regards
IN the same situation. Please HEEEELP
