Here’s how I CHMOD…
1) Use WS_FTP LE (type it in on Google, download it for free)
2) Enter in your ftp server details, pretty self-explanatory
3) Once connected, browse to the directory containing the folder or file that you want to modify the permissions
4) Left click the file/folder, then right click and choose “chmod”
5) Tick the appropriate box, hit OK.
Done.