Hello pete i have this version i hobe this is the info you need
BlynkSimpleEsp8266.h Version 1.0.1
Blynk_Async_ESP32_BT_WF Version 1.2.2
MAX31855.h Version 1.0.4
Adafruit_GFX.h Version 1.10.12
Adafruit_SSD1306.h Version 2.5.0
TimeLib.h Version 1.6.1
SimpleTimer Version 1.0.0
I highly recommend you to start from scratch. Writing your own code will help you to understand how things works. also I recommend you to start using blynk IOT instead of legacy.