You don't really need to create alias, but first thing first, your php scripts can only run when parsed by apache, which means that your apache must work first. Check it by point your mouse at wamp tray icon, not click on it, and it will show you how many service running; it's only good when stated "...all services running...". If only 1 service running, click on wamp tray icon and check apache and mysql to see which one has right triangle or square in front of it; the one has triangle is good and the other is not working.
BTW, I hope you use full tag <?php ... ?> instead short tag <? ...?> which will result a blank page
Have fun,
[
test.jlbn.net] (Sample Test Codes for PHP, MySQL, SQLite, ASP.net, SQL, JSP)
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www.jlbn.net] (Basic Guide for WAMP & Add-ons)