What OS do you have? If Windows, use this to test if PHP is installed correctly:
Go to the directory in which you installed PHP. Create a file called test.php and put this in it:
echo "Hello, world!";
Then open command prompt and type
You should see the text "Hello, world!".
If you don't, I suggest you uninstall PHP and buy a good beginners book such as the wrox one mentioned above.
-Snib - http://www.snibworks.com
Where will you be in 100 years?