Logging in
Before you can login to your new shell, you must have it activated. Read the previous paragraph and join #shellium on Freenode. The person activating your account will give you a new password. You can now use any SSH client to connect to ssh.shellium.org and login to your account.
Change your password immediately after logging in. Use the passwd command to change your password.
On Linux systems with openSSH this is the command:
ssh -l <login name> ssh.shellium.org
Also you can use this command:
ssh <login>@ssh.shellium.org
If the username on your current system is the same as the system you are trying to log on to:
ssh ssh.shellium.org
If you don't want to type in your password every time you log in, use SSH keys. If you're using Windows, PuTTY is a popular and useful SSH client / terminal emulator which will work well to connect to your new Shellium account. If you get stuck with it, check the PuTTY documentation, but it's pretty easy to use.