How to install photoshop cs5

1- First Go To This Link : http://www.adobe.com/cfusion/tdrc/index.cfm?product=photoshop&loc=en_us
And press download button

2- After download the program ,click the setup button to start installing


3- Thin press ACCEPT button


4- If You don't have serial key, then Press such as the picture show


5- select the program to begin install ,such as the picture show below 
then press INSTALL button 



 6- Thin it well begin processing ,such as the picture show below ,Wait for some minutes to finish installing

7- Click DONE , and here you go the situp is Completed ,Enjoy


8- Run the program  ,and get start