I used the 1.6 AT NoOS zip file, and I followed Section 1.2.4 in the documentation (I have 8Mbit flash). There still were some choices to make for the bin file - there were multiple versions of 'boot' and 'esp_init_data_default'. I chose the highest version number for both.
I used the load addresses from section 1.2.4 and the flash was successful. No errors. When I reset the -01, I see activity on the serial port, but it still does not respond with 'ready' like my other non-flashed -01's do. I am not able to run AT commands. I am able to flash simple scripts to the -01, so I know I have all the wiring correct.
Any other suggestions would be appreciated.