sounds like the clutch cable has snapped. if you have any knowledga about fixing cars you can fit a new clutch cable yourself. You can even order a new cable from Halfords. they are not so expensive (around 10 - 30 pounds depending on the car i suppose)
alternatitvely of course you could take it into a garage and get them to fix it for you, obviously at a higher price =)
Friendly Neighbourhood Carman, August 2008
