Hey PoHa!84, i was just thinking....
For the colour slider...
For each red green and blue values... you should make it like in Photoshop etc, where you can enter different values for the different colours, then have a seperate "slider" that shows the actual colour...
To do this, use the "slider" sprite (or image, or whatever it is that you click and drag) use its screen x and y values to get where it is next to the bar with the colour in it, then use the Point(x,y) command, and get the colour of the screen at that point (just next to where the "slider" is pointing) which gives you the selected colour...
Hope That makes sence to you...

Team EOD :: Programmer/Logical Engineer/All-Round Nice Guy