After you’ve installed WampServer, follow these steps to install WordPress on WampServer:

(Though, WordPress 3.3.1 was used for this tutorial, you will find it helpful for any version of WordPress.)
NOTE: I will suggest not to change the names I’ve used in the tutorial, else you can find yourself in trouble. Please only change names if you’re sure you can keep up with the changes.

1. Goto Computer -> C:drive There you will see a folder named ‘wamp’.

2. Open wamp -> www

3. Create a new folder here, named ‘testsite’ (without quotes). You can keep any name but note it down as it’s your site name and replace ‘testsite’ with your chosen name when it is used in upcoming steps.

4. Now, goto the WordPress setup file (which you downloaded in step 2 of downloading files). Open the zip file named ‘wordpress-3.3.1.zip’ (your’s filename can be changed because of different WordPress version), open folder named ‘wordpress’ and copy/extract its contents to our newly created folder ‘testsite’ [or the name you gave] (created in above step 3 of installing WordPress).
5. Till time, your site folder ‘testsite’ should look like this:

6. Open Start menu -> All programs -> WampServer and click ‘Start WampServer’.
Click ‘Yes’ on any UAC dialog window shown. Now, WampServer will be running on your system and you can see its icon in notification area.
7. Lets confirm your WampServer is working properly. Open your browser (I prefer Firefox as Internet Explorer loads slowly) and type ‘localhost’ (without quotes) in the address/location bar. You will see this page:

8. Click ‘phpmyadmin’ under Tools section.

9. Click ‘Databases’.

10. Type ‘testsitesql’ (without quotes) in the text box below Databases and click create. MySQL database for your WordPress site on WampServer is ready.

11. Type ‘localhost/testsite’ (without quotes) in the location bar of your browser. You will see this:

12. Click on ‘Create Configuration file’ button.

13. Click on ‘Let’s go’ button.
Enter ‘testsitesql’ as Database name and ‘root’ as username. Make Password box blank (you don’t need to write any password for MySQL database). And leave rest two fields intact. Now, click on ‘Submit’ button.

14. Click on ‘Run the Install’.

15. Enter your site name, username, password, email, etc. and click on ‘Install WordPress’ button.

16. Now, you’re almost done. You will see the success message. Click on ‘Log In’ button.

17. Enter your chosen username and password (which you chose in step 15) and click ‘Log In’ button.
18. Bravo! WordPress installation is finally complete. You’ve successfully login in WordPress on your WampServer. You will see the welcome message.

Now, you can enjoy using the best ever-built blogging tool on the planet. Some of the places to begin exploring WordPress is Appearance -> Themes and Settings. I hope you enjoyed the tutorial and found it helpful.

Feel free to share this and do let me know through comment that how it works.