Okay, let’s do it step by step. Click BBManager+BBWorkspace-2. I guess there must be BBWorkspace. Click it. Click user_lib. Then click projects. Now you should see SD_CARD. Click it. Now there must be a BBP file that you select and everything starts working.
By the way, what you have just done is following the path : BBManager+BBWorkspace-2/BBWorkspace/user_lib/projects/SD_CARD. Now you know what the path is! Enjoy
By the way, if something fails, please post a screenshot where it fails for you.