I am trying to make a carpet in homecrafter, I have it in, runs in game, but I want recolors of it without it overwriting the original.. How can I do this?? Probably wrong forum to ask in, but I am trying to recolor a "build" item.

There's a tutorial on creating walls/floors/groundcover here that covers the basic functions of Homecrafter: http://www.modthesims2.com/showthread.php?t=147840

You'd basically just want to select the floor you want to recolour and then instead of choosing the plus sign to make new content, choose the button to the right of it to clone the selected content, then look down below the gridlines where it says "Texture to Edit:" and then modify that .bmp file however you want in your graphics editing program of choice. Repeat as necessary. (There's more discussion on pretty much this same thing in the thread if you need more info - a longer explanation I gave to someone wanting to splice two walls together).