I tried to install adobe photoshop cs3 extended..

i have a 8.2 gigabytes of free space for my hard drive..

and when i start the installation...

it says..

Installer alert

Please insert Adobe photoshop CS3 to continue installation.

The problem is the cd is already there..

i already put the cd in the drive...

How can i uninstall the product when im trying to install it..

i can't call the adobe..

im from philippines!!