PHP Help - CHMOD 0777

I'm trying to install IPB v2.0.4 online. When I go to the install page I get the following erros that need to be addressed before I can continue: Warning! The following errors must be rectified before continuing! ·Cannot write to the file '../conf_global.php'. Please CHMOD to 0777. ·Cannot write to the file '../skin_cache/'. Please CHMOD to 0777. I haven't the faintest idea how to do this. The only thing I know is that changing it to 0777 lets other things read and write to it...I think. I don't know. Can anyone help?

You need an FTP client like flashfxp, log into your account go into Public_Html and find those directories and files, right click and set the chmod to 777 on them.