I'm going to hazard a guess and say that s/he was asking whether or not there is a way to get the Youtube button up.
I had a strange moment myself, having just installed your updated mod (Great work btw). WHen I first installed it, the youtube buttons and other similar stuff was there and I was able to amend the code for one of my posts with an embedded youtube video in it, but after I did that, the youtube button and a lot of other buttons that were with it, disappeared...leaving me to change all the rest of the posts by hand. Not too much of an issue for me, but I'm not convinced my board users will be able to manage as easily.
So I will echo the foreign person's (assumed) request and ask whether the Youtube button can be added/reincluded?
And that is done by editing the /richedit/editor.js file, as I have just found out.
Awesome mod of a mod, thank you.