Printing back to front is actually a feature of the software you are using. You can do this in Word on your printer now. This link will go into more detail: "Printing Back to Front."
Lastly, two-sided printing is an accessory part that you put on the back of the printer to make it turn (called a duplexer). Once again, not a feature that can be added to a driver, or this printer for that matter. Sorry to be the bearer of bad news but on the plus side, at the HP Parts Store, there are enough parts for this printer, you could keep it running for decades.
I am glad you like it. :)
