ive got a fuel filter to change but i was struggling to see it, is it tucked right up the underside of the car?
 
last time i saw a fuel leak but no visible fluid the pipe on the top of the pump assy had split and was filling the top of ther sender unit up enough to smell but not to leak

lift drivers rear seat up and look under the carpet theres a round panel (3 screws) check under there for dryness when it's running the pump