No, unless you just changed it, it's showing up on the audiostream listing as ".mp3.m3u" as it should. In Oddcast the mountpoint should end with .mp3. The m3u is added by WU.
I can hear the stream and it sounds like it is being encoded correctly... no buffering issues.
If you're still having issues tomorrow night, I could take a look at your configuration files and look for differences between our setups.