They come out mid-late August. Usually you go into your 6th form college to collect your results, you can also go on the UCAS website to see if you've got your place, and if you have got your place a letter should arrive through the mail informimg you that you've got your university place. Well, thats what happend with me last year.
My A Level Results:
History:B
Psychology:B
Ethics and Philosophy:B
English Literature:B
Depending on what course your doing in univesity, you'll probably find the first year of university easier than your last year of A Levels, and the marking scheme's at university seem to make more sense than at A-Level. I remember coming out of A-level exams thinking i've done brilliant and come out with a D, and also coming out out exams thinking i've done crap, and got A's. In university, exams seem to be more....rationalised.