ok, I've been looking around for this kind of info,

I have an ntsc dvd, menus, chapters subs and all, and want it in pal

I tried converting all of the .vob files with convertxtodvd and that worked fine, so, should I just be able to burn all the converted vob files with the original bup, ifo and the video_ts.vob file? Im guessing its not going to be as simple as that.

As vso also changes the file names from vts_01_0, vts_01_1 to vts_01_1, vts_01_2 so no "_0" anymore, I guess this could get confusing

Its seems that no 1 click software exists, all the stuff I've seen involves downloading loads of freeware packages just to do one job!

I would use Nero, but in my experience has been aweful, maybe some incompatibility with my comp, but it has never worked properly.