I Paid for a server from NFOServers ofc

when I come to this i'm a complete noob so please bare with me

reason why I paid for a server is cus the server I use to Admin on closed down and I met a lot of nice people on that server so I thought it would be nice for me to run my own server.. thing is I have no idea what the hell i'm doing xD so hopefully someone who ain't a noob like myself should know how to do this.. and please a step by step would be much help
Ok first thing is.. I wanna add ULX to my server.. I know where to download it from I just have no idea how to put it on to my server
2nd thing is should be as easy as pie but again noob xD how the hell do I change my server to TTT?