This extension will add NEW label (*NEW* or whatever text/picture you want to be shown) for the products that are newly added. By default, it will add the *NEW* label to products that are 30 or less days old (counting from the date that the product was added), but this can be very easily changed with the change of only one number. For example, you can set it up to show the *NEW* label to all products that are two weeks old, one week old, 1 day old, etc. (counting from the date that the product was added).
The *NEW* label will be added everywhere in your store, where the product is shown, i.e. at all pages (product, category, bestsellers, featured, latest, specials, search, compare, manufacturers, wishlist, specials page).
Just see the pictures from the Additional Images tab, and you'll get the idea ;)
Installation is as simple as it can be, just open this, find that, after that add this, and it's done. No files are overwritten, no complicated database queries, no trouble at all.
If you need any help, free installation is on its way. Just contact me by leaving a comment, or via forum's PM (GoGo OpenCart).
NOTICE: As soon as I test it with other versions of OpenCart, I will update the compatibility list, so stay tuned ;)