1. For best quality, upload an image which has the same number of pixels across as you want stitches across.  So for a 100 stitch across chart, use a 100 pixel across image.
2. You can often get better results by turning up brightness and/or contrast.  This really depends on your image but it often helps.
3. If it's choosing too many colors, you can turn up the "Color Sensitivity" in section 8.  You can also manually choose colors by selecting "I will choose my colors" in section 5b.
4. You can sometimes get better results by checking the "Anti-alias" box in section 8.
5. The best images to use are non-compressed ones like .gifs.
6. It's better to choose a palette with enough different colors in section 5a.  If there aren't many colors in the palette, you won't get many colors in the final chart, and many of them will be wrong.

Again, feel free to let us know more specific questions if you want.  I'm hoping to start uploading the tutorials in the next few weeks.

Terry