Well this whole thing was confusing. I could not get the printer to work. Epson blames vista 64 not supporting firewire. I contact Dell and they said the firewire ports are fine. I ask them if vista 64 supports firewire. They say contact MS. MS says I need to contact the PC manufactorer on any MS operating problems, since that is where I purchased it from, or pay $60 to seek assistance. I am not paying $60. So all I get is a run around.
As a result, I am going to add a USB PCI slot and just use the usb cables. Now my problem is I think the PC only uses USB PCI Express cards, and they're a bit hard to find.... but I'll look around some more.