Thanks stevenmartin99 for updating the first post!
I'm sorry to bother you, but I have a small problem: somehow every PHP addon I have installed doesn't work on my PC.
I started with the basic
Apache 2.2.11
PHP 5.3.0
MySQL 5.1.36
preinstalled in WampServer 2.0i and everything works fine (with this I mean I can load my Joomla sites I am working on and access the phpmyAdmin I have passworded and made accessible with the cookie authorization method).
I have upgraded Apache to 2.2.17 and MySQL to 5.1.52-32bit thanks to your addons and everything worked fine. I then tried to update PHP with 5.3.3 version, but once I do that I cannot load my sites nor phpmyAdmin (once I click a site or enter the password of phpmyadmin the cursor of the browser keeps spinning for a while and then stops with nothing but a white/blank page).
I also tried PHP 5.3.2 and 5.3.1 but the problem persists (just to check if the problem was caused by some incompatibility which should not be the case). Naturally if I go back to PHP 5.3.0 everything works as before.
In every case the icon of Wampserver is completely white so that would mean that all the services are correctly loaded. I also checked (trough wamp menu) that the php extensions selected on the working PHP 5.3.0 are also selected with PHP 5.3.3, and they are.
Is there a file I should update with the password used to access phpmyadmin? It looks to me that it has to do with an authorization problem (no sites and phpmyadmin load, so maybe they cannot access the database).
I have even compared the php.ini files but can't find any substantial difference.
I'm sorry for this long post. :/