To login you need to follow these steps.
Firstly enter the new servers, if you need admin rights for both gametypes then you need to enter WaW and Cod4. However you don't need to enter every server of each type as your rights will carry across all.
Then wait until your rights have been lifted from just "User"
Go in game again once your rights have been lifted and type !rt in chat, this will return your client id number and a 4 digit token. write down or remember these.
Visit
https://oghfservers.co.uk/ and use these details to login.
when logged in, look at the left menu and select the console option, in the lower bar type !setpassword yourpassword of course replace "yourpassword" with a unique one. This is then the permanent password to use with your client id each time you need to login.
If you want to add a Gravatar to make your Player page look a bit more Unique then use !sg followed by the email associated with your gravatar account.
Happy Admining