Well, if your footage is 24fps, you can’t lay that back to tape. Tapes don’t run at 24fps, so you will only get garbage.
What you might try is creating a new sequence that is 29.97 and drop your sequence into this, render it, then output it. It won’t play smoothly, as it is doing a poor man’s conversion.
If your final output is to be on tape, you shouldn’t be editing at 24fps. 24fps should only be used if you are printing out to film, or burning a DVD. Tapes run at 30 fps…unless it is HD, which runs at 23.98 fps.