They probably deleted it! : Well, Email Seventh or Andy a Email with a description of your tutorial then wait for their replay! If they want your tutorial then Email them it!!! One thing check in popular sites for a tutorial on the same subject for if there is one then it will be just a waste of time to try posting one!!
Here are some of the popular editing sites:
76th Valtitude- http://www.vlatitude.com/
Rust- http://www.gamedesign.net/
Snark Pit- http://www.snarkpit.net/
And of course check if there is no tutorial on this in TWHL!