ftp server

I need someone to look up something in their OVH panel (and FTP server) $5

I just cannot figure out how to access all the files on my website through filezilla or any ftp file browser. I need to edit the main pages to add in adsense code. I can get the ftp clients i use to connect, but i do not have access to the files i see in cpanel. Please help, much appreciated.

Hey. I wanna ask if you know a good site to buy ftp server and if it is cheap to i gonna use it :)