Columbus (5-7-8) drew within a point of the final playoff spot in the East. Montreal (3-10-5) remained with the fewest points in the league.
Montreal opening the scoring in the 35th minute as Marco Di Vaio took a long pass from Justin Mapp, got past defender Giancarlo Gonzalez, and drilled a right-footed shot past Crew goalkeeper Steve Clark from the top of the box.
Anor scored the winner in the 74th minute. He collected a loose ball near midfield, took a couple of dribbles and fired to beat Bush.