Topic title should be "Grammar national socialists", not "Grammar national socialist's." You wouldn't say "Grammar national socialist is, I call you to my service!" Also, Lizzy is right, so the title really should be "Grammatically Correct national socialists, I call you to my service!"
Back on topic, the sentence in question should be written "Thank you, and good luck", but it could also be written as "Good luck, and thank you." Both ways are correct.
In before someone points out a grammar mistake in this post I didn't notice. :s