I don't see how you can interpret that statement any other way. Search Alex's main web page (http://www.obd-2.com) for the term "volvo" and it's the first thing that shows up.
If that's not enough for you, you can get a look at the screen capture that I sent to Alex to explain my problem:
The left half of that screen shows the standard OBDII DTC screen, including the codes from when I had my ABS controller out of the car last week for repair. (Thanks Victor!) That also provides evidence that Alex's system is actually communicating with my car.
The right half of my screen capture shows one of about a dozen body and chassis "servers" that Alex's system can tap into. Note that I've selected 95-99 Volvo in the top right of that panel, and that I'm trying to retrieve "Supplemental Restraint System" codes according to the top left of that panel. Regardless of the feature's apparent support, I'm getting an error that says "sub-function not supported or invalid format."
In Alex's most recent message to me, he stated that he had tested this function on a '97 S70, and it worked fine.