Here is the deal from someone who knows. You cannot just use a USB to USB A style cable. It has to be TTL to USB, so you have to use a DKU-5 and make one, or you can get the car-hacker cable for USB to USB. If you can deal with RS232 Gilligan_rocks makes one, but I couldn't get him to make me one.
As far as the software, go to
http://www.mohdparts.com , they have a link to download whatever version you need. If you can get a DKU-5 in your area I can send you some links on how to use it. Also, there is some talk that the Belkin Serial => USB works to talk to emanage. Check the Yahoo! group emanage for more information on any of the above info. Basically, the only way you MIGHT have it tommorrow is to wire up your own, or get the Belkin.