kimalpena

So I sign into the admin page and I am given notice there is a new update "WARNING: Your store is not up-to-date, v6.0.4 is available, but you are running v6.0.2" so I try the upgrade button and get this "Failed to download latest version. Please attempt manual upgrade" so what will I need to do to install the zip manually and what will it change to the pages I have modified colors and text? I am new to cubecart. thanks for any help in this matter.