index.php in url

Hello,

When I post articles on my blog http://www.hip-hopkings.com, the index.php is included in the title.

I wanted to include the article title for SEO purposes, however I fear that it may be effecting not only my SEO, but the Google Adsense program I have running on the blog as well.

Does anybody know how to remove this from previous, and future article URL’s? Thanks in advance!

Ryan