Indonesia SEO Contest Using "Kampanye Damai Pemilu Indonesia 2009" as keyword

I`m new beginner in SEO things, several days ago i try to participate at Indonesian SEO contest using keyword "Kampanye Damai Pemilu Indonesia 2009", and the result is my blog indexed by google on 46 of google result pages. Than i tried to fixed all my heading thing that contained about metatag etc. It did work in a few days till a few hours ago i didnt found my blog indexed on google. All