Thanks for all the suggestions. In the end, I've stuck everything back
in place using silicon sealant (like you use to seal behind kitchen
worktops) and all seems to be working OK.

Steve - try posting on this forum http://www.ukwhitegoods.co.uk/ Lots
of small traders seem to use it, and one may be able to sell you a
replacement (or at least tell you where to get one).

Jon