This is a campaign started by Tim Montgomerie of the Conservative Home blog. There's a supporting website and petition. Interesting to find the name of a former classmate in Sheffield among one of the BNP supporters. However, I'm sure you could publish a list of Labour, Libdem or Tory members with criminal convictions too, so I'm not sure that section of the site is entirely fair. Otherwise, I agree completely: hospitality shown to the stranger is hospitality shown to Jesus.
Ht Mark Meynell
Update: it also appears that the photos in the BNP literature are just cut and pasted from Google searches, and they don't have permission to reproduce them. The people pictured aren't actually BNP supporters. Oops.