Your AS grades are far from awful! If you don't want unis to see them, you can decline them (unless your school/college doesn't cash them in) and just put pending for everything, but even if you declare them, you're not too far off what unis want, so as long as your predictions, personal statement and reference are good, it's definitely still worth applying. Unis realise that plenty of people improve from AS to A2 with resits and they also know that your teachers wouldn't predict you grades they didn't think you could get, so your predictions should be more important than your AS grades.
grace_x: The 4th AS isn't usually that important, so unless the unis you want to apply to ask for a C or above, or want a C or above in biology or a science subject, you should be fine.