If you read their website properly, you will stumble upon this:
"If you don’t have the GCSE/A-Levels (or equivalents) that we’re looking for, but hold an Honours degree at 2:1 or above, we would be very happy to use that as evidence of your academic achievement."
If you want to apply before 2013, I doubt anyone can tell you if they will or will not knock you back. I think they will look at each case individually and decide.