辐射3一个外国的MOD网账号怎么注册啊？

a6355284

http://fallout3.nexusmods.com/mods/640 就是这个网
用户名邮箱密码什么的我都填全了
就是回答问题那我不知道怎么整的，我都填对了，可最后注册时他总说没填对，
显示这个
The following errors were found:The registration code did not match the one displayed, a new code has been generated, please try again

他基本这些问题
What is the capital of Englande?答：London
What continent is France in?答：Eoropen
What is 2 + 7?答:9
What is 8 + 3?答:11
可这些是明明都是对的答案，他总说不对，有没有成功注册过的人告诉一下怎么注册的？这个网有些MOD需要登录才能下载的