sharing printer

[CU]

I built a computer out of old parts I had for my parents. I connected there old computer by wire to a new Netgear MR814 wireless rounter. The computer I built has a new TRENDware TEW-228PI wireless network card installed in it. I can access the internet and shared files on the other computer without any problems. I shared their HP712c printer and added it to the computer I just built. It installs the drivers fine but fails the communications test. Their old computer that is sharing the printer is running windows 98me. The new computer I built is running windows 98se. Any clue what could be causing this problem?