Ok i fixed it and set up my checker Map to see if it is without stretching. You can get my Checker right there checker_512.gif or you may download this plugin if you're using 3dsmax 8 uvwunwrap.dlm , this will replace the nasty eye destroying default-checker that comes with Max 8 and will give the relex modifier a real default button, the current one doesn't save anything by default, i don't know why they called it default ;)
The next step is to set up the render to texture dialogue.
I'll use the map channel 2, to use my new UVs with the old texture, and set up the Texture size to 1024² if everything is set up right select the diffuse map as the element that will be rendered, don't create lighting and shadows into that map, because it will darken the texture and won't work on the final texture which has none of those shadows and the lights.
That is the result, my old texture is baked onto the new Uvs.
now in photoshop i over painted the seam by smudging and painting over it and added that pink stripe to show the result on the final map, the whole thing is done pretty dirty, but well it's just to show my way to create better seams.
