What you said before about the painting was done exactly the same way with virtualdub, so, no trouble with that. For the re-encoding I used Premiere.
But the problem is the original vob file is compromised because of the motion mode it's been encoded, which have some motion blured artifacts, even in NTSC. That's something I would need a solution for. I woul like to put back the whole film at 23.97 fps. I was able to limit it with tmpgeng, but not completely. That's why I would need a VERY good tutorial on how to do this (sorry if I wasn't more specific before).
For the vhs source, I'll let you handle it (at 23.97) since I'm not too confident with scripts, but you can always show me with a good tutorial.
So, I'm waiting for your suggestions.