QUOTE(noodle @ Feb 24 2007, 09:27 PM)

Maybe Barry-clari or Deborah will be able to help.
Did somebody call?
Firstly, congratulations on adopting a clarinet

Now, on to playing the thing! Without seeing you in action, I don't know for definite what the problem might be, but here goes...
To start at the beginning of the process, how have you attached your reed? The flat side of the reed should be against the flat face of the mouthpiece, on straight, with just the thinnest line of mouthpiece showing above it. The reed needs to be in good condition - any chips or splits and you're onto a loser. As for reed strength, I'd be reluctant to start a beginner on a 2; I direct beginners towards a 1.5 at first (although all reeds are different, and that's a whole other thread!).
Secondly, embouchure. Don't be afraid to place quite alot of instrument in your mouth, with your bottom lip curled over your bottom teeth, with the reed on your bottom lip and your top teeth resting on the sloping surface of the mouthpiece. You need to grip tightly, but NO BITING!
As purple dolphin has already pointed out, make sure that you think "breathe" rather than "blow". The airspeed needs to be fast and constant. If you're trying to cover any of the holes, make sure that your fingers cover the holes fully - there should be perfect circles on the pads of your fingers if you have.
barry-clari, elliewelly, neil.clarinet and other members of the Forums Clarinet Community will probably have a few other pointers too, so look out for their posts.
In the meantime, I'd recommend a couple of lessons to ensure that you get off to a good start.