How do I check the if I have this AKU?

[scanboy]

Hello, can someone tell me how I can check if I have
Windows Mobile V5.0 Adaptation Kit Update 2.3.1 enhancement is installed
in my x51v. I bought the AXIM in Dec 06, and it has A12 installed. When I run the
AKU update, it shows that my ROM version is A12.0001 and the AKU one has ROM
version A12. Does it mean that I have AKU 2.3.1 installed already??

[Koterpillar]

Start - Settings - System - About.
You'll see, on the second line:
OS 5.1.XXX (Build XXXXX.AKU.VERSION.HERE)
That's it. And A12 is 2.3.1.

[scanboy]

Thanks, so my A2DP should work without any 3rd party driver?