John, are you asking me about changes you are planing to do with the designer of the winning logo, after you select your winning design?
If so - after the contest, you can ask for any option that includes change of colors, background, etc. plus multiple file formats which you may be needing for printing, web, etc. That is usually done by sending those additional files directly to Contest Holders personal email, while original winning files are being uploaded on Logo Tournament site.
If I misunderstood your question, let me know.
If you are asking me about