I have yet to see folk wire their printer with Ethernet to the PC as that would be a fairly expert setup. You claim you are technically challenged but your setup makes me think you are very adept.
Either that or you really connected it with USB.
This forum addresses my issue but I need further help. I have a non-wireless enabled desktop (Windows XP), a DSL modem, a dual band Belkin wireless router, a new wireless printer (HP Photosmart C309), a wireless android tablet and wireless android cell phone. I would like them all to have access to the new printer but I seem to be having the same problem as in the above forum question. Printer currently set up in wired (ethernet) directly to computer. I have an extra ethernet cable if that will help. Just need step-by-step because I'm old and technically challenged. Thanks