yeah, the phone cord goes to the dsl modem then there is cat5 cable from the dsl modem to his computer..he needs to get a cheap little home router (linksys befsr41 or similar)...he would then go from the dsl modem to the router and then its cat5 from the router to the comp and from another of the routers ports to the xbox
routers are used so much now that walmart has em.