Oso Blanco said:

I'd really love to convert this DVD into PAL ... is there any way you could upload the MPEG file you had created before making it a DVD? I guess that would make things much easier ...

Why? Converting it would lower the quality, so you wouldn't gain anything by having higher PAL resolution, and NTSC will play on European equipment without problems.

Furthermore, uploading the original mpg is unnecessary. You can obtain that by using pgcdemux to pull out a single mpg, which wouldn't be any different from the original.