HELP PLEASE

what editor?

A respawn for your player, like, let's say, Pokémon?
It's easy since it's 2k3 =D.
1. Go to Database, Battle Layout tab.
2. There's something similar to "Random encounter Death Handler".
3. Select the option "Call Common event" and select an empty common event on the box just below it.

Now, go to the Common events tab, and do the event as you wish. It can just say "meh rlz, you..." or teleport you and restore your party to full, and even grab some money from your player. Or what you want.
If you don't restore them to full in THAT event, please make sure they don't have the chance to battle with all dead members. It's just annoying (you can do something like a "Limbo", and when they get to exit, they get restored, or even make a minigame or anything you like).