Jim,

I don't know what to make of that answer. They didn't send you any help,
advice, or operator's manual. The "Marco label" is on the fireplace so it's
possible that some other manufacturer made the gas logs. That's all I can
think of
I think you'll need to get someone out there to look at it and advise
you. Your propane guy could light it so give him a call to arrange a visit
or call a plumber with a gas license.
Learn how to start it. Get the name and model number so you can get an
owner's manual. I still think you'll get it running before Christmas.

Dave M.