i want to become crew but i dont know how to rank up
First, you must be logged into your forum account on this website. Then, you go to the DTP (a link is at the top of every page, between "Forum and “Donate”) and when the white login box appears, login there with your server username and password. Then once it forwards you to the steam site, you login again there, this time with your steam username and password. After doing that do /login your-password on the server and you should be crew :).
Here is also a link to the merging guide from the owner of the server, Rofl.
Nicely said, STS. Next time you have a question, please ask it via PM, the shoutbox or you can even ask on the server.
Also, welcome to Dark-Gaming!