You can apply to join the staff team for the server you play on by reading the appropriate topic in the "Server Applications" section. There's a few threads with all the templates you need.
I saw you on the RP server so I am going to assume you want to apply for those servers, HERE is the template for that server. You must follow the hierarchy Moderator >>> Admin >>> Super Admin >>> Head Admin. If I am wrong here is the templates for the other servers. Deathrun, Bhop, TTT
If you want to apply for staff on one of our servers then you'd need to use the template that Sally has given you. Just Copy it and then make a new topic under Server Applications, I wish you goodluck dude!