Please note that if you submit a site that is not a t-shirt blog (or a clothing blog that regularly covers the t-shirt industry), it wil be rejected. I have created a separate site for t-shirt brands, called ShirtStor.es, that you can submit your t-shirt shop to.
When your website has been approved, you may want to promote it to make sure your fans know to vote for you and get your listing up the rankings. Twitter, Facebook, blogs, and your newsletter are a great way to do this. I have made some banners that you may want to display on your site telling people to vote for you, ShirtStor.es promo banners are on this page.