Wordpress Blog Hacked - Needs Fixing

I have a wordpress blog, [login to view URL] which has been hacked. Currently it tries to install malware on unprotected machines and makes calls out to advertising sites. I need a wordpress expert to get rid of all the malware, fix the site and secure it so that it does not happen again. It is running wordpress 2.7.1 It is hosted on a linux package. I can give ftp login details and wordpress loging details as well.