I cant connect to internet router plz help?

so i'm trying to hlp my frend living in ireland,and they have 2 routers for some reason, 1 netgear and 1 motorla connecting to each and they both are connected 2 each other and both are needed to work, it is a netgear wgr614 v7 it does not have a dsl phone cable port for it, but the motorla has a wire which is similar to an aerial cale and i ave a laptop which has built in wirless which works but my pc and laptop which i have a usb adbatopr do not connect one just keeps sayin aquiring network address, and even wen i connect throug to the ethernet cable my other laptop and pc will not connect i check pword is right so can anoyone hellpp me plz i'm reallly stumped!