Here are some pics of the fuel and return lines for you
This is looking toward thepassenger side and up into the engine compartment. You can see the routing of the fuel supply and fuel return lines. The upper is the fuel supply and the lower the return line.
This is just under the passenger door. Here the lines are "stacked" one on top of the other, but there are two (2) retaining clips. One for each line.
This is about the middle of the passenger door. Sorry for the poor quality of the pic, but i think it will give you the idea.
This is where they start to go up along the rear frame rail just forward of the rear wheel well.
So it looks like there is only one set of retaining clips for that section and it should be about the middle of the door. There are also one on each line just above ( toward the engine side) the fuel filter. Hope this helps. If you need more let me know.