I have the same issue as you.
However, if I move the section with the timestamp and product_date_added furhter down on the page it works but then I get another issue.
This is what happens:
The "new" tag will appear correct for the first product that is considered new, but after this product every single product in the listing (on the same page) will have the tag as well independent if it's new or not. If you then click on the second page everything is fine again until a product that is considered new comes along, because after that product every product on that page will have the tag.
What can be wrong when this happens?
Cheers,
Swedaporean
New 
