If you go to
http://theidoctor.org/omnia.html, you'll find some of the stuff you are looking for. On the right side, there are some downloads. The bottom download is the Samsung i910 USB driver. You install these drivers on your computer. There is also a UMDL download you can use. The instructions above say click "Eboot....", but for the 2.3 version I was told to click on the PDA button and find the appropriate .bin file. Hope that helps.