You just need physically move ALL of your site files from the 'c5' directory up into the root, and then make sure that your domain is then mapped to that new location, instead of the c5 directory.

You can move the files by selecting/click/dragging via FTP if that is how you access your files, or if you are accessing your files via something like cPanel then this can also be done in the file manager by highlighting the files/folders and clicking on the 'Move' button. You could also do this via SSH if you have access. This is a cleaner way of doing things if you know what you're doing, but the syntax required will depend a little on your Operating system.

If your site was using a sub-directory as part of the address, then you will need to change your .htaccess file to reflect this.

Hope that helps! If you could provide a few more details about your environment and tools you have to hand, then I can probably provide some more specific help.

Cheers.

I sent you a pm..