Hello,
The Installation section of the CCSv5 Getting Started Guide is recommended:
http://processors.wiki.ti.com/index.php/GSG:CCSv5_installation
You can also take a look at the Quick Start Guide:
http://processors.wiki.ti.com/images/5/52/CCStudio_v5_QSG_9-11.pdf
Once you have successfully installed CCS, I suggest taking a look at some of the material in the CCS Training Page. There are a variety of tutorials and workshops to help you learn more about CCS
http://processors.wiki.ti.com/index.php/Category:CCS_Training
Thanks and good luck!
ki