It's on YouTube somewhere, I watched it like 2 Years ago - it wasn't blocked; but I imagine it probably is now.
You can try and use a proxy:
www.hidemyass.com
And search it on YouTube from there.
It should work.
Also you should of put this in the Big Brother 9 section; probably would of gotten more replies.
But yeah try Hide My Ass > YouTube > Search 'Big Brother 9 UK Auditions E4' or something like that and watch it from there.