I managed my problem, checked and tried.
BUT: WTF?! ALL IS DONE - AND IT SAYS: No Ext mounted? WTF - now I need help - and it's done. :>
IF I GET FASTLY HELP WE HAVE THE OLD A2SD IN THE NEXT 20 MINUTES
It only says:
[X] Ext partition found, but not mounted.
Your rom may not be setup to run A2SD.
Check with your rom developer if the boot image
is programmed to run A2SD.
I checked the Boot.img 2 times - all is prepared. My SD haza 512mb A2SD - Ext - Partition. And what now? ...