Yes, i know about problem for unlocking MS for newer CN with higher FID than 2200, and didn't use it for that maps! I used it for AR which FID is 708 like we know is lower than 2200 , but some problem at all there was it seems at unlocking some of AR smaller img files , and errors in header like lolly explained, so in future i'll use for all type of maps lower or higher fid than 2200 gimgunlock .

For MS i used MapSource unlocker 2.30 i think from pietu ,

[Only registered and activated users can see links. ]

and it was ok to for CN higer version.