Ahhhh... neon lamp! (glimm) it have very small current consumption! Can work via serial condenser. Try the circuit with a small bulb (min.5..10W) The 0.5ma of glimmlamp not enough for TRIAC proper work.
I'm using a PIC 16c715 for the logic to turn the opto/triac off and on.
The only port pin I have available is OPEN COLLECTOR (the board I am using also has a 4k7 pull up resistor).
I have not been able to get the Triac circuit to work with this OPEN COLLECTOR. Although when I measure the o/p with a probe I can get it to change from high to low...