Portal Modifs

Hy all.
Sorry, but i'm french, excuse my english languge.....
Well, my problem is to integrate the portail in the forum if somewone clic the link "forum"(see the screen).
I desire the forum will appear in center (see the five hands)
Is it possible
[flash=,:1050mhvy]http://lords-team.info/cms/portail.jpg[/flash:1050mhvy]
Sorry, but i'm french, excuse my english languge.....
Well, my problem is to integrate the portail in the forum if somewone clic the link "forum"(see the screen).
I desire the forum will appear in center (see the five hands)
Is it possible

[flash=,:1050mhvy]http://lords-team.info/cms/portail.jpg[/flash:1050mhvy]