Thanks, ***** ***** picture does not show me the gas valve wire connections on the actual gas valve so I am unable to tell if you jumpered the 24 volts from the transformer (both wires) to both terminals on the gas valve.
There is also a high temperature safety cut out switch in series with the gas valve... I mentioned earlier... you have to follow each of the wires from the gas valve until you run into it, and fit a jumper wire across it, it the fire place now fires, you found the problem, if not, the problem is either the gas valve or the ignition module.
You can also remove both wires from the gas valve and check for an ohm read between them, it there is infinite resistance, same read you get when holding both probes in the air, then the gas valve is bad... if you get an ohm read at all, the gas valve is probably good.
If you appreciate my input so far, locate the "rate your expert" link, and rate my work positively... we can go from there.
Lacking that I can spend days with a customer at my own expense,without any compensation. Rating does not increase your charges or close the question and it allows you unlimited follow up.