I have noticed the Detect that was returned is from a Jasper 256 , is this the model you have ?
008A3020 - Jasper 256mb , funnily enough this is the only model that we have not tested , it works on the 512 jasper ok ,weird that it does not see the 256 , will ask the developer .
This forum was specifically made just for the bcusb ,at the time i have no affiliation with the developer other than the fact that i enjoyed messing with the bcusb and noticed everyone slagging it off , it may not be the fastest on the market , but it does the job. hence the reason i started the forum.
Since then we are slowly making progress with the bcusb , soon we will have non-dma added, this will then allow it to work with modems such as the sbg900 that you enquired about.