hello,
first off, not that I'm saying there is anything wrong with only running on SP1, but you really should be using SP2 or 3 for XP by now, you are missing out on many updates that fix many issues with the OS and it's ability to handle newer software.
Secondly, glad you were able to fix the issue by installing that update package.
and finally, the missing openAL32.dll is fixed by running the updater program and fetching it.
enjoy
