For #1, read that link, it will tell you all about locked regions and how to check (Section D). You can check many ways, easiest way is the way mentioned using those FPT commands (Specifically dumping entire BIOS via fpt -d spi.bin or dumping on the FD region via fpt -desc -d desc.bin)
Use a FPT version, from a matching "System Tools" package here, that matches the ME Firmware you think is currently flashed into the BIOS (ie if you think 10.x.x.x is flashed use system tools 10, if you think 11.xx.x.x.x is flashed use system tools 11 package to get right FPT versions)
Follow the guides, ME files to use are there in "Repositories" you download those and a "dump or backup" from your PC. Then clean and create matching new one with your downloaded BIOS or ME region extracted from that downloaded BIOS.
To clean the file, the #2 link shows you method, it is involved and you must do each step one by one, be sure you read fully before proceeding on any step.
Sometimes little bigger is expected, did you transfer settings from the downloaded clean BIOS to the new ME?
How did you reflash the new BIOS (What command), and did you issue command fptw -greset once you reflashed?
If not, you must remove all power from the board for 1 minute or so, you always have to do that command, or below method to reset ME state if you’re changing ME
This means after flash unplug from the wall, remove CMOS battery and press and hold the power on button for a little bit, this will drain all power from the board and reset the ME
No, I don’t know what the block is for CPU’s. I was only trying to help you get properly working ME, that’s key first before anything else, ME showing as 0.0.0.0 is not right.
Disable ME may be all you need to do, where did you read that and can you post a few links so I can look into it for you. You never read a certain version of ME has to be used, only to "Disable" ME?
Where these people discuss that, they don’t say how to disable ME? Cleaning ME is not disabling ME, that would be something entirely different (I assume, since clean and disable are totally different in all languages) 
Once I can read more info about this I can help you get it done probably, as long as there is proper proven info or examples out there.
And not only testimonials by someone saying "I did it, disable ME" "Clean ME works for me" (Since those are different things, and not helpful to anyone trying to make same changes on their system)