Updating WAMP 2.0

I'm currently running WAMP 2.0 on a Windows server and it has PHP Version 5.2.5. I would like to update WAMP to the latest version but more importantly upd开发者_如何学JAVAate PHP to 5.3.x so that I can take advantage of all the namespace goodness.

I was wondering if anyone had any pointers for going about this and any pitfalls I should look out for when I do update. Will I need to update my extensions? Can I just download the latest version and drop it in to the WAMP PHP bin directory?

Any all insights on this would be helpful. Thanks for the help!

So I'd love to help but I haven't been successful at upgrading. I followed the instructions here: http://www.dotkernel.com/php-development/how-to-upgrade-wamp-to-php-5-3-4/ to no avail. phpinfo() still thinks I have 5.3.0 for some weird reason.

I noticed I didn't have the php5apache.dll files. I tried copying them from my old install, but maybe they're different for different php versions?