Sorry my bad english...
My topsite is : http://www.mysite.com/top100/
My main joomla site is http://www.mysite.com/
The topsite page is wrapped in joomla and it works! so... when user vote from her registered site, user use the gateway page and it works... so, after gateway page, the default redirect is http://www.mysite.com/top100/ .... it's possible to redirect to my joomla wrapper (http://www.mysite.com/top-100-italian-c ... sites.html - SEO optimized - ) after voting by gateway page?