Rebecca0630
How did you get the vocaloid to work with Band In A Box?
Not directly, and also depends which vocaloid version you may have.
I believed with the current vocaloid editor, you can import a backing track (first generated using Band in a box) into the vocaloid editor, which is the easiest method. After that you simply generate the finished vocaloid track and mix it with Sonar.
With earlier vocaloid editor that lacks the audio track, you will need to use 'rewire' to link Sonar / Vocaloid, so the start/stop bar movement can be synchronized together.
Back then, I was actually using Reaper instead of Sonar to do the rewire sync, as I can't get 64bit Sonar (the only version I installed) to sync with 32bit Vocaloid. Repear's rewire works with either 32 or 64 bits.