sdata is important, I don't have a data.grf either.
Unregistered id means the account you're trying is not registered.
You only need to put the _M or _F the first time, then remove it, if it gives you that message, it means it did not create the account in the first place, try again with the _M or _F.
If you can't make it work, pm me the account name you are trying to register and I'll look in the database.
