Is there a link where we can edit or at least verify that our recipe submissions have been received? Or a link where we can view all the recipes that made the second round?
No, there is no link for editing the recipe you have submitted. If you clicked the Submit button, there should have been a "Thank You for your submission" page, and that is the verification that your recipe has been received. If you need to edit the recipe, you'll need to submit the recipe again with the changes and an explanation for the second posted recipe.
The Gold Medal recipes from the competition are always printed in the September/October issue of Zymurgy. Even better, the NHC Gold Medal recipes are also posted on the AHA Homebrewopedia (http://wiki.homebrewersassociation.org/AHA