question regarding to 2 features of Emacs

[Jidi Sun]

Dear Sir/Madam,

I am a new user of Emacs, currently I am using it to do Common Lisp 
programming. On the internet I saw pictures of Emacs with different 
colors shown for different parts of function, also it is able to start 
with some spaces from left margin once press Enter key within a 
function. The Emacs version I am using is 21.4.1, but it does not have 
either of above features with it. I am wondering if I need to type some 
commands or change some options to get these two features working.

Thank you for your help,

Jidi Sun