You're definitely not in an ideal situation, but I wouldn't say that you've absconded every chance you ever had of getting into university. It's generally accepted that AS levels are a big step up from increasingly easy GCSE's and definitely in my first year of sixth form I experienced this. Having achieved mostly A*s and As at GCSE I was shocked to find that the grades I was getting handed back didn't exceed B. When the first exams came around in January my performance was average at best. This was sort of repeated in the summer, ultimately however I re-took in January and improved my standing significantly.
In September 2010 I had a discussion with the head of sixth form regarding grade predictions, on the condition I re-sat my english paper she agreed to give me the AAA that I needed to get into all my universities of choice. This I did and in the summer of 2011 I left with A*AA.
My As-level grades were a good lot higher than yours, but the point of my story is relevant; predicted grades are conservative and, with a good lot of hard work you can achieve reasonable grades still. Personally, I would arrange to see your head of sixth form and ask to discuss your situation- requesting that you are predicted the grades you need to enter courses you're interested in (pending January re-sits) or, alternatively, that you re-sit the first year and hopefully get higher grades which allow you to enter university. Now that fees have been hiked up to £9,000 there certainly isn't the pressure to enter university this coming year as there was when I was applying.
As an end note, it's worth thinking as to why you got the grades you did, as this might strengthen any case you present to the sixth form. Did you experience some kind of bereavement or personal tragedy, was the transition to sixth form difficult? Or perhaps you now realise that you should of worked a lot harder than you did this time last year and being wiser you wish to put old wrongs right.