why can not I update my own website

They have: 1 posts

Joined: Jun 2012

I have a website. I wanted to change its design. I prepared new design files.
but I can not update my website. I send new files with ftp program (fileZilla). I see new files admin panel but the website see old version.
why don't the website update?

sorry for my bad english. Smiling

thank you