good news to those who have Olimex usb isolator.
it works actually.
i was able to install drivers and use DI after i've connected a second power supply to the isolator. (Audio-gd's PSU on DI and a 7.5v PSU from my router on the Olimex isolator)
it was identified as a TE8022 device and i had to manually install the Audio-gd's drivers.
i guess that isolators didn't work without the PSU only because the te8802 chip + adum isolator eat more than the 500ma a usb port can provide
Maybe for you. Mine had chronic dropouts (multiple per second) when hooked up like this.