untide

Technic Community, Hello I am Untide, I am working on a new public server for tekkit, and I am in need of some help. I am confused about commands and plugins. What I previously had was a bukkit server, and installed plugins for that no problem. I am wondering if I can install plugins such as essentials and such, so for admins like myself I can enable /fly. I have tried googling this but haven't found anything useful for me. Any advice?