Hey hey! Welcome to PCHF
ME is a bit tricky because it's setup for 56k. It doesn't have anything pre-setup to nativaly run DSL (a always-on connection).
You'll need to get an ethernet card if the motherboard doesn't have a plug and if the cable going from the modem is ethernet (ditch the USB adapter, it'll only complicate matters).
Once you get a PCI adapater, plug it in (when computer is off), and once you boot up, insert the CD, install, and it should work. At least that's how it worked when I switched back to ME to play some old games. If not, let me know
