Another old CFX, new firmware question

[ASCI Blue]

I've got a pair of CFX boards, one 10.0, one 10.002 I think. I'd like to update to the newest firmware, when I tried to do so using the button method the onboard LED flashed and wouldn't stop seeming to signal that the firmware update didn't happen. I tried updating to 10.005i using RICE through USB and RICE crashed, I tried 10.006 and worked my way down to 001 or 002 when RICE did not crash and allowed me to edit settings. To update firmware am I allowed to skip versions? which software do I need to update firmware? do I need to download the latest soundfont packages to go with the latest RICE versions too?

thanks in advance for the halp.