yeah, they are in the case just infront of the battery, they can look ok even when blown as the fuse wire tends to crack rather than completely melt. im not sure where to get a replacement (halfords dont do them), prob a motorfactors will though.
you could bodge it for now with some wire, a couple of female blade connectors and a normal blade fuse for now.
good luck and let us know how you got on.