Pretty much knackered then mate.
If you look about theres a very recent topic where someone butchered theirs and fixed it with some ford focus stereo internals.
but your best bets are to get it repaired (£200), buy another (Also about £200)
If you'v got an S version buy an after market stereo and adaptor from your local halfords or somewhere.
If you've got an SE or Sport then buy the lead off Ebay and an after market stereo.
For both youll also need a fascia kit for the new stereo to fit.
Look here:
Clicky
This is a topic i started that explains all.
Stav