If there was people on the servers then the race was already started, too late to join.
You can not expect people to walk you through the process while trying to concentrate.
If you have created account on the website, next step is to register for the race. (at top of the webpage upcoming race is shown)
Then set a time on quali server. (deadline is 1h or so before race start, so one week time to drive qualification time)
After driving qualifaction your status changes from "pre-registered" to "registered" and password is shown.