Are you sure you mean Fierowarehouse? www.fierowarehouse.com
Yes, they are still in buisness, but have scaled down to basically handling just the fiberglass parts. Doug (owner/operator of Fierowarehouse) does not get to spend much time on the computer these days, and takes a while to answer inquiries about product.
Maybe the webpage hasn't been updated to reflect that, I'm not sure.
If you mean the tinted sail panels for the GT fastbacks, Doug doesn't carry those any longer.
You can try contacting Chris Cook, who used to supply them to Doug. Might try looking on ebay.