Unfortunately I was also unable to find a driver for your Sorensen Power Supply. We do have a driver for the Sorensen DCSM9C Power Supply and it may work for your device, but I'm not sure. Since this driver was contributed by Sorensen, you might contact them to see if they have any more. If not, then you're left with a couple options.
First, I would like you to submit a request for this driver at:
http://zone.ni.com/idnet/other.htm
We develop drivers based on demand and popularity so the more requests we have for it, the greater the possibility that we will develop one.
If you would like to try developing your own instrument driver (or modify the existing one), we have documentation, model instrument drivers, and driver templates to help at :
http://zone.
ni.com/idnet/development.htm
We also have a syndicate of third party vendors that specialize in National Instruments' products and services. Some of the vendors specialize in driver development. I would suggest contacting one of the Alliance members at:
http://www.ni.com/alliance
For manuals about IVI drivers, just go to http://www.ni.com/manuals and search for IVI.
I hope this helps!