The current version of OpenAL can be gotten from
here. Be aware that the link references a FTP site which requires passive FTP. You may have to temporarily disable your firewall in order to download the file, if your firewall blocks/prevents passive FTP (like mine does).
Note that if you have an Audigy card then you should get updated sound drivers as well (updated eariler this month I believe). Though not every model has it, most of the Audigy series of cards have full harware OpenAL support in the newest drivers. Assuming that you are using Launcher 5.4 (or newer) you should be able to select that accelerated device (not sure what the exact name is) instead of "Generic Software" or "Generic Hardware" in the audio config tab.
If you have an X-Fi, then new drivers are available (since last month) for that as well which includes full hardware support for OpenAL.
In both cases, please be sure to install OpenAL 1.1
before installing the updated drivers. I don't know that it is a requirement, but better safe than sorry.
