Ok so this is going to be a basic guide for getting Member on Survival.
Quick link: http://bit.ly/survivalmember
Firstly what does Member rank give?
Member rank is a free rank on Survival and fits between User and Tier 1.
It allows you to:
/sethome [Sets a location as your home so you can use /home to get back there]
/mail [Mail other players even if they are offline]
/realname <nickname> [Find out the real username of a player with a nickname]
There are two parts to this guide: Totally new players & players already with a forums account.
For New Players without a Forums Account
1 - Click 'Register' at the top right of this or any page of the forums
2 - Agree to the Terms & Conditions
3 - Fill in the registration form (For your email make sure you do NOT use a Yahoo address as Yahoo addresses don't like the forums D: )
4 - Once you have received your confirmation email, confirm that you want to set up your account
5 - Then log into the forums and click 'Profile Page'
6 - Click 'Survival Profile'
7 - Click 'Upgrade to Member'
8 - You are now Member rank on Survival
For Existing Players with Forum Account
1 - Go to your Profile Page
2 - Click 'Survival Profile'
3 - Click 'Upgrade to Member'
You are now a Member
This tutorial complements Echoed's tutorial on how to get Member on Build which can be found here: viewtopic.php?f=11&t=32965
Sorry for lack of images but I don't have an alt account to use to make an additional forum account. If someone would like to take the screenshots and PM them to me I will add them with credit to you.