Please see this FAQ entry , and I'm sorry, I should of pointed out the .htaccess file from your old version would of worked for the new version....
http://www.dew-code.com/content/view/14/25/


Since this was installed from Fantastico, you will need to access the admin panel and set the BASE URL, which is the web address to your website, and BASE PATH, which is teh directory you installed to, or leave it blank if its in your public_html directory..

Finally, select a language and theme, and save the settings.