The OAW-IAP103-RW appears to be an Alcatel Lucent Enterprise product. So for software updates, you will need to contact Alcatel Lucent Enterprise as you might need to have an active support contract to get the latest firmware.
What you can try is to go in the WebUI to Maintenance, then Firmware, Check for new version. If that option is available, you might be able to get updated firmware through there.