BQ40Z60 and bqStudio

I'm running bqStudio v1.3.45 and an EV2300 connected via SMbus to a custom PCB based on the bq40Z60 application circuit.

1. When I first run bqStudio, it usually won't auto-detect.  It provides a list of devices to select from, two of which are bq40z60:

4600_0_13-bq40z60.bqz

4600_0_15-bq40z60.bqz

Which one should I use?

2. When I select one of those devices, the following message appears: "The detected device is not compatible with this application!"

What does this message mean, other than the obvious?

3. Where can I find the latest firmware for the bq40z60?  I didn't see any links to it on the device web page.

Thanks.