i dont believe you need a relational table for this since the uploaded photo will only be associated with one user.
you would only use a relational table to create a many to many relationship.
in this case though, you are creating a one (user) to many (photos) relationship
the photos table should contain a foreign key column that relates to the user through the user Primary key column value.
When the images are uploaded, the users ID is stored in the foreign key column, and the photo name is stored in the photo column.
to display only the photos for a particular user, filter the recordset on the foriegn key column.
