This will disconnect your house from the rest of the world. Plug the modem in and see if it syncs up. If it works at the interface, but not in your house, then something is goofed up with the wiring in your house. You should not have to mess with any other wires of fuss over what color goes where. This may be better suited in the Southwestern Bell forum or Pacbell forum, because there are Field Service Technicians there that can help you.
Wiring can have too many variables.
I'll take a stab at it, but be informed in everything you do. Sound like you do not have a TNI, so you cannot unplug a RJ-11 plug from a Jack. If only one, then check for line voltage on each pair. The one with voltage is your line and ignore the other pair. I'm going to assume your DSL Modem is using line 1.