How do I strip the vobsubs from a PAL DVDR to be suited for a NTSC (23.976fps) XviD?

I've tried to rip them with vobsub, then tried to adjust them with TimeAdjuster 2.9 but it has some issues with its player function, that makes it useless..

So, anyone got any tips for how to solve my problem, please post.

/uzer