Home page redirecting to event page on Wordpress
Create an empty Wordpress page, name it what you want, for example "civi". 
Add that name to the "WordPress Base Page" in 
Administer - System Settings - CMS Database Integration.

For more info see:
http://wiki.civicrm.org/confluence/display/CRMDOC/Displaying+Public+Forms+in+WordPress+Frontend+Sites

Does that work?