Just in case it helps ... there is a whole ESP8266 community of support staff at your disposal ... see: http://www.esp8266.com/
The forums are active and friendly and there is a ton of historic information about all things ESP8266. Flashing the ESP8266 is a story that has to be done all the time for those who like to play with ESP8266 by itself so you will likely find a ton of useful posts, tips and tools present there.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Just in case it helps ... there is a whole ESP8266 community of support staff at your disposal ... see:
http://www.esp8266.com/
The forums are active and friendly and there is a ton of historic information about all things ESP8266. Flashing the ESP8266 is a story that has to be done all the time for those who like to play with ESP8266 by itself so you will likely find a ton of useful posts, tips and tools present there.