I checked JC Whitney for the Item # 06ZX9188Y referenced on the image (linked provided by elvin315) with the chrome floorboards, but it's no longer a good number. I guess the picture was taken back in 2002. 12 years would be a long time to keep the same Item Number in use.
The nearest item I found on JC Whitney now is:
http://www.jcwhitney.com/emgo-passenger-floorboard-kit/p2002568.jcwx?filterid=u0j3 SKU #: JCW-014315. But I don't think they would work without some kind of adapter. I thought Küryakyn might have an adapter that would work, but didn't see any.
Thinking about buying some Küryakyn's black floorboards #4357 and using their #8883 (Non-Pivoting Splined H-D Style Male Mount Adapters). I think this combo would work. It was mentioned to me on the COG Forum and the pictures didn't look bad at all and I guess chrome floorboards could be utilized instead of the black ones.