How do I keep the colors of my graphics?

I copy and paste, I Save As, and RPG Maker 2003 wont take the valid clolor, so after I save it as 256 whatever thingy
It allows me to import it, but it changes the colors really bad. Is there any other way I can do this without having to mess up my colors? I read somewhere there was a program to do this, but I dont know what it is...

You need a real image editor for that. If you use Photoshop for example, you could just open the image and save it as a 256 color gif. Then just reopen it again and save it as 256 color bmp/png.