Perhaps Mark will be able to let you have the voting results of the Lib-Dems on this matter in the European Parliament, I seem to remember something being mentioned about their voting record on this matter at Sunday's meeting.
In the meantime perhaps you, (and every body else could send your candidates this:
on a sort of realted note, but more of a shamless plug of a friends website, you can check how your local MP votes in the UK parliament here.