Just an fyi post for anyone having sound issues with the latest raspbian build. I was having tons of trouble with it working and was getting pretty frustrated. I finally decided to use an older build to see if it helped, but before I got it I downloaded Occidentalis v0.2 from the people over at Adafruit and gave it a shot. Worked perfectly, booted the image and did the standard setup stuff. Once at desktop I opened scratch and was able to add and play sounds with no issues at all, worked perfectly.
I will try it extensively over the next week or so as my daughter is doing a science fair project with a pi and a makey makey, so it is all about inputs and scratch outputting sound. Should be a good test. Anyone needs a link, here it is:
http://learn.adafruit.com/adafruit-rasp ... s-v0-dot-2
Finally, working scratch! I updated the config file to enable us to overclock easily as needed, otherwise I left the stock image alone and did absolutely nothing.