Re: Can I convert NTSC to PAL?

Essentially, you're stuffed.
NTSC uses 720x480, with a Pixel Aspect Ratio of 0.9 for video & menus, with a frame rate of 29.97fps.
PAL uses 720x576, with a Pixel Aspect Ratio of 1.066 for Video & Menus, with a frame rate of 25fps.

There is simply no way to do the conversion in one easy step.
Best option is to use something along the lines of either
A - DV Film Atlantis for the Video or VOB conversions, but be aware you will lose all Surround information (If present), all chapter markers & all menu structures.
B - Start over, from your Premiere Pro output.
Import the NTSC footage into a PAL Premiere project, hit the "enter" key and then simply export out as a PAL movie or MPEG-2 file.