Did you download the Simplehomenet Utility? The EZX10RF can be set to ignore X10 received RF codes with the utility. The default is ALL 256 codes.
The utility also needs a Insteon PLC [2414U;2414S or 2814U] and SDM3-308 or one of their network interfaces.
Indigo is Mac correct? Not sure if anyone has the utility running on a Mac; but I understand the later OS can run Windows stuff.