BatchStamp’s submission has been approved by Softpedia and it may be found under the Mac(intosh) section. The file available for download there works not only on Macintosh, but all Java-Enabled systems. In fact, the same file was tested by me only on Linux and Windows XP. Softpedia tested it for Mac. It is certified as 100% clean and virus-free as well. The link to what I think you may need, so just keep it, find it here.
Have a good day, and oh, yeah, almost forgot, find me on Twitter too, here. My handle is @dantinkakkar. Please feel free to provide any sort of feedback! 🙂