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Double check these settings..Go to Wordpress --> Settings --> General and look for "Membership" and make sure the checkbox is marked so that anyone can register, and just below that you'll see "New...

We can't see that page as that is a order specific page that will only be shown to the person that is logged in and that has been cookied.
Maybe you can post a screenshot combined with your CSS code...

Open one listing and scroll down to 'Pricing information'.There you have to set an expiration date for the listing to be featured in category and/or in home page.