First off, go to settings > reading and set your site to show perhaps 5 posts per page. Your site takes a long time to load on my wireless internet connection and that can drive visitors away. Not to mention that the search engines now consider page loading times and total page size when determining search engine ranking so slow loading pages will get discounted.
It is always a bad idea here at wordpress.COM to paste the entire stylesheet into the CSS edit window since that will break all relative URLs to images used in the theme (which is why you have lost the RSS icons in the right end of the nav bar beside "posts" and "comments."
When doing CSS at wordpress.COM, put only the specific selectors, and the specific declarations you are changing or adding into the CSS edit window and make sure that "add to existing..." is selected. Then your changes will override the original CSS without breaking the relative URLs in the original CSS.
http://csswiz.wordpress.com/2009/10/15/if-you-have-the-wp-com-css-upgrade/
This will turn the site title white.
#header h1, #header h1 a, #header h1 a:visited, #header h4, #header h4 a, #header h4 a:visited {
color: #FFFFFF;
}