The title is supposed to mean, "Hey mod, how are you doing this evening." However, if my high school French education is accurate, that should be, "Comment allez-vous ce soir?" or "Comment vas-tu ce soir?" depending on the intended level of respect and the implied closeness of relationship of the individuals.
The message, I'm assuming, is supposed to say "Just asking, that's all." I'm not positive as to how that would be said properly in French, but I don't think they would phrase their comments like that.