Follow the below steps

Step 1: First you need to download and install

the Adobe Photoshop CS5 Extended

Trial from the Adobe website. (You're

going to need a free account.)

URL: http://www.adobe.com/cfusion/tdrc/

index.cfm?

product=photoshop&loc=en_us

Step 2: Then once the trial is installed, make

sure Photoshop is closed and navigate

to this directory: C:\WINDOWS\system32\drivers\etc\

Step 3: Download the zip archive given

below . Inside the archive there's a file

titled "hosts". Extract this file to your

desktop, then copy it to the above

directory given in step 2 (drivers\etc).

It should ask if you want to overwrite or replace the file. CLick "Yes" or "ok". If you have trouble overwriting, take

ownership of your original "hosts" file

then try replacing it again. OR Google

this: "how to take ownership of a file"

Download mainresource

Step 4: Almost done. Open Photoshop. There

will be a window asking for a serial

number.

Use one of these:

1330-1036-2793-5476-2605-5729

1330-1193-9982-0310-7670-2199

1330-1470-0441-6829-3063-2553

Now You Are Done

refresheys