The NIC = Network Interface Card: Since that is an older computer, I presume it is a P3, It might not have a built in Network card and given that it is winows 98, not worry about it and just connect is usb. Give me the address and I'll try to log on from my DSL and I'll let you know what happens and then we'll go form there.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.