Just three days? You must be kidding. This is not how search engines work. Besides, these days meta tag and keywords mean very little; a page is indexed based on the whole content. This may be wrong, but this is the fact of life.
At least submit your site to Google, it is fairly effective. Here: http://www.google.com/addurl/?continue=/addurl
]. I did it several years ago and the search key words I wanted get my modest site on the very first line of search. Google did it quite fast, but not in three days, just a bit longer.
In practice SEO means tons of dark schemes. I hope you will never use them. Try to represent really valuable content. Your first goals are to provide such content, make it clear and highly readable, provide comprehensive navigation and site map, good maintainability, adequate level of support, make it free of all kinds of garbage and distractions. SEO should go after all of that.