Forms generation with CivicRM Profiles under Wordpress
I'm not sure what you're wanting to do is possible, see a solution here, which is to create one new profile with all the fields: https://forum.civicrm.org/index.php?topic=32718.0

That said - CiviCRM 4.6 with Wordpress has the ability to render multiple profiles, but I'm still not sure if you can have multiple profile forms: https://civicrm.org/blogs/haystack/working-civicrm-46-wordpress