Did you disconnect the lines at the rail, or down by the chassis? They have the spring loaded connectors at the rail (which I looked at and have no clue how you disconnect those), but down by the chassis where the rubber hoses connect together they use those connectors with the plastic clips, like there is on the fuel filter.
I don't really know what kind are on the rest of the system, but for the kind that uses the clips, you're supposed to replace the clips with new ones when you remove them. I think you can get new clips at auto parts stores but I dunno really.