Have .png images in indexed mode - how to edit?

Hello - I have some images in indexed mode and my Photoshop CS 4 won't let me edit them - how can I get them out of indexed mode?
here's a screenshot of my work area:

You can also look at my profile and see how many people have awarded me points for useful responses.
I'm sorry if you are unable to interpret my responses as anything but helpful. I'm not attacking you. I am pointing out the problem with CMYK conversion. Does the fact that fewer functions are available in CMYK mode tell you that CMYK is not the ideal mode for editing images? With color profilng and CMYK preview, there are few situations where one really must dumb down an image to CMYK mode.
Let's grow up and discuss Photoshop, not your own interpersonal issues.

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Hi, You can do this but only with a PNG with a palette of 256 colors (maybe GIF as well) so doesn't get a lot of use, good enough for image buttons and the like, but might be ok for your image as it does not have that many colors. Otherwise radzmar's suggestion would be the better approach.
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p.s. I'm always on the lookout for a new beer to try if this one you would recommend? 3% and all.

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continuing...
I wrote a script to read a color table from a GIF file and save to an ACT color table file. I think it might be useful for someone.
It goes a little more deeper than the code I posted before, as it now identifies the table size. It is important because it tells how much data to read.
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// reads the color table from a GIF image
// saves to an ACT color table file format
#include "xtools/xlib/Stream.js"
// read the 0xA byte in hex format from the gif file
// this byte has the color table size info at it's 3 last bits
Stream.readByteHex = function(s) {
function hexDigit(d) {
    if (d < 10) return d.toString();
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return str;
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Math.base = function(n, to, from) {
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var img = Stream.readFromFile("~/file.gif");
hex = Stream.readByteHex(img);      // hex string of the 0xA byte
bin = Math.base(hex,2,16);          // binary string of the 0xA byte
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break;
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break;
case '010': // 24 bytes table
tablSize = 8
break;
case '011': // 48 bytes table
tablSize = 16
break;
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tablSize = 32
break;
case '101': // 192 bytes table
tablSize = 64
break;
case '110': // 384 bytes table
tablSize = 128
break;
case '111': // 768 bytes table
tablSize = 256
break;
//========================================================
// read a color (triplet) from the color lookup table
// of a GIF image file | return 3 Bytes Hex String
Stream.getTbColor = function(s, color) {
function hexDigit(d) {
    if (d < 10) return d.toString();
    d -= 10;
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          var ch = s.charCodeAt(i);
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importColors = function (){
     for (i=0; i< tablSize; i++){ // number of colors
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importColors();
// remove redundant colors
// important to determine exact color number
function unique(arrayName){
     var newArray=new Array();
     label:for(var i=0; i<arrayName.length;i++ ){
          for(var j=0; j<newArray.length;j++ ){
               if(newArray[j]==arrayName[i])
                    continue label;
          newArray[newArray.length] = arrayName[i];
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ColorNum = colorStr.length/6;
lstclr = colorStr.slice(-6); // get last color
if (ColorNum < 10){
ColorNum = '0'+ ColorNum;
cConv = function (s){
     var opt = '';
     var str = '';
     for (i=0; i < s.length ; i++){
          for (j=0; j<2 ; j++){
               var ch = s.charAt(i+j);
               str += ch;
               i ++;
          opt += String.fromCharCode(parseInt(str,16));
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if (ColorNum < 256){
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     lstclr = cConv(lstclr);
     for (i=0; i < emptyColors ; i++){
          output += lstclr; // fill 256 colors
output += String.fromCharCode(ColorNum) +'\xFF\xFF'; // add ending bytes
Stream.writeToFile("~/file.act", output);
PeterGun

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Have .png images in indexed mode - how to edit?

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