Andrew You could try Sky’s dedicated Accessible Customer Service team 0844 241 0333. To get more help with this.
Also have a look at this page
http://accessibility.sky.com/
Another quick thought, not sure what you would want to be doing, but JAWS was developed with the working environment in mind so possibly you should get a demo of that and give it a go?
http://www.freedomscientific.com/pro...oduct-page.asp