It looks as if your *actual* problem is figuring how to motivate one employee to get in the version control loop. Allow me to suggest some possible motivation techniques:
Money talks
If you are management, or can get management's backing offer to hire an intern who's job it is to simply check his code in for 1/2 the intern's salary. (ie. he's giving up half the intern's salary out of his own salary).
If you aren't management, offer to check his code in for him at $15 per instance, payable before checkin.
If he's not going to check things in correctly anyway, make it a process. He FTP's the files to the test server, someone else tests his code, provides feedback and if successful, the tester checks in the code