I'm not European but my understanding was that they literally vote no against everything as some sort of protest?
Their statement if this is the correct vote you are referring to:
"Whilst we as a group voted against the ACTA Resolution on Wednesday 10th March 2010, we did so on the principle that the ACTA Treaty itself should not exist in any form. It is a catastrophic violation of individual private property. Had we voted to support the Resolution, we would be recognising the existence of such legislation and on that basis we decided not to recognise the Treaty."
Their statement if this is the correct vote you are referring to:
"Whilst we as a group voted against the ACTA Resolution on Wednesday 10th March 2010, we did so on the principle that the ACTA Treaty itself should not exist in any form. It is a catastrophic violation of individual private property. Had we voted to support the Resolution, we would be recognising the existence of such legislation and on that basis we decided not to recognise the Treaty."
http://www.ukipmeps.org/mypage_11_ExpVote.html