The actual temp. certificate is the official word on the matter. Even if the website shows you only ppl if the temp says Comm. then that is so. The previous temp. is now invalid so toss it if you want. It will be good for 120 days. If it goes longer which it shouldn't, just go to a local FSDO and they can get you another temp until the permanent one arrives. The temp. should work for anything you need to show your license but as posted earlier you should have to update your work file with a copy of the permanent. It usually takes about two months for mine to come even when I was living in OKC.
Hope this helps.....