Barb,
Hope the new rig is working well for you. I'm sure you have all the
docs and stuff you can deal with from icanworkthisthing.com and the
Active Elements sites, but in case you aren't aware of these, here are
2 more options:
The TS-590 resources page isn't geared towards blindness or
accessibility, just general info on the radio:
http://homepage.ntlworld.com/wadei/ts-590s.htm
Also the Kenwood site has free downloads for firmware updates,
ARCP-590 radio control software, and stuff like the virtual comm port
drivers to use the 590's built in sound card.
If your radio was just purchased new, I'm sure it has latest firmware,
since the last update came out in September 2012.
http://www.kenwood.com/i/products/info/amateur/software_download.html
73, Steve KW3A