Unfortunately I'm not an expert in php,so I can't tell you where.So the easiest way is to modify the database table:Category and rename test to anything you want
3.1 admin panel doesn't have those features to rename edit delete some stuff. you will have to manually edit them in sql.
it is kind of primitive ^^ compared the newer one's
server manager setup is a little bit tricky which i don't feel like explaining. ( to long to type ) but here is a short version. u need PHP SSH module enabled, user/pass/ip of the linux server set on config.php and lastly correct names for each cabal services also in config.php