After a brief discussion we came up with the solution: for every application show a list of all other applications from the same candidate.
Here's how it works:
1) You open one of job applications here:
2) Click on email address to see all other applications that you received from that email address:
Please email me firstname.lastname@example.org or comment below if you need PostJobFree to do something special for your - we may come up with the solution.