Box scores are available on BostonGlobe.com at http://www.bostonglobe.com/sports
On the right side of the page under "At a Glance" you will see the "Scoreboards/Schedules" section. From there you can navigate scores by sport, team, or schedule.
Under "Schedules" the team schedule will show. To access a game's box score, click on the game result and it will provide you with the game summary with a link to the Box Score.