In need of finding a Lost sister

[Nu_Phi_Mu]

Hi everyone~
I am looking for a lost sister, and I am wondering if it is okay if I try to find her on here? Please let me know. Also, I am not sure what all these terms mean, so can I just be blunt and have someone answer them?

What is a Junior Member?
What is a Member?
What is a Senior Member?
What is a Moderator?
How do you get to have a title like that, moderator, Sr. Member

Is everyone on this forum a member of Beta Sigma Phi? Sorry guys I am just now learning about this. My daughter was telling me about this cause a bunch of her sisters at school were talking about this site, that and I just found another site that is different then this. Please if someone can help, I would appreciate it greatly.

Hopeful

Okay it says I am a junior member how did I reach that status?