I have an 8330 through US Cellular, and they released an 8330m. I still have my phone, and they released build 205 for the OS on the 8330m. Am I going to hose my phone if I attempt to load the release on my phone?
There doesn't seem to be any difference btwn the two. Since OS's are device specific, it should not install on the 8330 if it's not for that device. However, since the version number seems to be only a slight change 4.5.0.131 vs .138, I'm guessing it's probably not worthwhile doing the update.
Any 8330 OS will work on the device. You just need to delete the vendor .xml file before you load it onto your phone. You are not stuck with any certain version, you can upgrade or downgrade at any time.