Try setting up different summary reports on layouts based on your join table. Perform a find for a given project on it and you'll get a list of all employees linked to that project. Find all records and sort by project and you can get groups of records under a sub summary header with the project info and the people listed under it are the people linked to that project.
And you can turn this around and perform a find or sort records for a person to get a list of projects linked to that person. This can be done on a different layout also based on the join table.