We are currently authoring a guide – sorry for the delay to everyone on that. So, nothing to download yet, sorry.
In regards to the connections to the EZIO8T, if you cannot connect, go to the insteon tab on top, and look in the received box (right hand side) to see if we are getting ANY insteon traffic from the module. If it is blank, then your suspicions are right, the 8T is not talking.
However, if the LED is not correct – and you see no traffic on the utility, then I do recommend you return the module to Smarthome – I am sorry for the inconvenience.