Hi John,
For the SATA/IDE adapter card, make sure you get one with the correct conversion going from an IDE drive to SATA cable. They make them both ways.
FWIW, I pulled out a brand new WD 500GB IDE "spare" HDD, and connected it with a Vantec CB ISATAU2 IDE/SATA USB adapter unit, which I have, and it worked fine set as a master. Recognized the IDE drive right away. So as Franc said, possibly it's in the USB bridge of the Kingwin.
http://i1195.photobucket.com/albums/aa400/John_VanKirk/VantecISATAU2adapter.png
http://www.amazon.com/Vantec-CB-ISATAU2-Supports-2-5-Inch-5-25-Inch/dp/B000J01I1G/ref=sr_1_sc_1?ie=UTF8&qid=1348784450&sr=8-1-spell&keywords=vantec+isa. It's $15 on Amazon. Might also be worth a try.
Once you get your data copied over, then you'll wonder what to do with the old IDE drive!