电子化申请的问题

不好意思，小弟英文不好，我母亲在美国申请我F1,刚刚收到DS-3032信件，现在准备申请电子化再下载3032电子表格寄email过去，刚刚看了格式
收信地址是[email protected]
主题是 ：OPTIN GUZ2005000000
主体内容：
The email address at which I wish to receive electronic correspondence for GUZ2005000000: [email protected]
Applicant's name: Zhang, San
Applicant's email address: [email protected]
Applicant's date of birth: January 25, 1972
Petitioner's name: Zhang, Shi
Petitioner's email address: [email protected]
Petioner's date of birth: May 18, 1968
我不大明白，我是属于Applicant's还是Petitioner's，还有我准备代理人填我母亲应该填哪里？
在线等。谢谢大家了