Sendmail installed - Unable to start

Running Fedora core 2.

I know I have sendmail installed, as I have checked through RPM -qi sendmail.

Mail is being sent and received throught the server, but Senmail is not running. Everytime I try to start sendmail I receive the following message

bash: /etc/rc.d/init.d/sendmail: /bin/sh
: bad interpreter: No such file or directory

Can anybody explain what this means. I have tried crawling throught faqs etc, but I do not seem to be able to resolve this.

I really need to get sendmail up and running so that I can use Procmail and SpamAssassin