Frontpage

Hi, how can i configure the button in frontpage like in the demo?
My link is http://www.condominio.lda.pt

I would also like to know how to remove the risk above the form in http://www.condominio.lda.pt/index.php/registo-email and also to delete the index.php in the url

Regards,
Cipriano

Anyone can tell me how to take out that line in www.condominio.lda.pt/index.php/registo-email