The latest firmware has been released in Jan,2009.
Firmware update procedure is not announced officially in JA market.
That means Yaesu dose not allow Japanese cutomer to update the firmware of FT-2000 by themselves. If we did it, warranty of that equipment is terminated immediately, e even if the warranty period has not been finished yet.
Besides, in US it is opened and the latest firmware can be downladed free of charge from Yaesu America Website.
Update procedure is little bit complicated, but the step by step procedure is described in the Yaesu website, and my local friend, Jun/JQ1BWT who is an active electric engineer kindly helped me to do it.
After istall of the new firmware "PEP2000", my FT-2000D has been re-born.