Maybe:
http://www.geocities.jp/arduino_diecimila/bootloader/index_en.html
This uses the FTDI chip's
CTS, DSR, DCD, and RI pins - see the X3 connecter here
to drive the SCK, MOSI, MISO, and Reset pins on the ICSO header.
If you can connect to them, this method does work. I still have a Duemilanove set up pins added to make the connections above. It takes a bit to set up all the files.
If you have Win7 or 8, there may be some extra fooling around to do as well to allow unsigned drivers, etc. I saw yesterday that perhaps pressing F8 on bootup provides the option to turn that checking off.