Do you mean VLC didn't have a sub-menu for it or the option for this particular video was not available. Chances are it was re-encoded without the subtitles. You could always go to the VLC forums & inquire about it. Just be careful not to mention anything copyright such as like the rules we have here. Also search the topic before posting. They are much stricter about that issue & won't answer if it's been answered previously.
http://forum.videolan.org/