You might try Promotion instead. It's a Deluxe Paint clone, also for pixel graphics. I'm not sure if the version on their site works in Vista (I had problems with png files).
I'm currently testing a beta version of the next version (which works in vista). The new version also include a mapeditor. Look at cosmigo.com and go from there. I don't know then the final version will be released.
I'm currently testing a beta version of the next version (which works in vista). The new version also include a mapeditor. Look at cosmigo.com and go from there. I don't know then the final version will be released.