Here is a step by step guide sorry for any spelling mistakes
1. download it from
Here
2. unzip it to your desktop (not really needed but this way when uploading it shows a progress bar)
3.Open up your ftp site the adress will be
ftp://USERNAME@SERVER IP
E.G a made up one would be
ftp://DJRAZ@12.234.231.345:27015
4. drag the folders from the mani plugin and copy them over the folders in the server e.g addons will replace addons etc.
5. if you want to change the file either change befor you drag into the ftp or you have to drag the file to your desktop, edit it, and drag it back into your ftp
Hope this helped