Can you post a picture? It doesn't look like this site can handle them but http://www.voy.com/8309/ or http://www.woodweb.com/cgi-bin/forums/wnw.pl can. If you have any problem posting at the first one, send a JPG to Wick at the address on his home page.
If it's a laminate like Formica or similar, you may need a piece of the laminate for a perfect match, but there are still some ways to improve defects.