you have got it fixed by now but this is for anyone else.
lift the back seats, there you will see a 6inch dia black lid type gromett. remove that with a screwdriver. under this you will see the pump. unscrew the black ring that holds it in, disconnect the pwer lead and the fuel lines. lift out the pump. hit the silver drum bit with a hammer and then put it back in . i bet you £10 it will work.
dervish, April 2008