Mambo 4.5.2.3 to 4.5.3 Patch Installation Instructions:

Below you will find the steps to bring a Mambo 4.5.2.3 system up to the 4.5.3 version.  This will NOT bring prior versions up to date.  You should first try to bring prior versions up to the 4.5.2.3 patch level before applying the 4.5.3 patch.

Step 1: Backup your site (both database & site files).

Step 2: Extract all files inside the patch into your Mambo installation. The files are organized in a hierarchy identical to your 4.5.2.3 install. Let them overwrite the existing files.

Step 3: Log into the Administration system of your Mambo site, goto the Site>Global Configuration screen, click on the "Server" tab and turn ON register globals emulation.  With a brand new 453 install this will default to ON, but with the patch you will need to set it manually.  Leaving this OFF may cause certain site functions and/or components not to function as expected.

That's it.  Patch complete.