Only download this fix if you installed core 2.02 full version BEFORE 8th May, 2009
Also if you have installed the update version 2.02, you need to download this bug fix.
Download the zend or ioncube file depending upon what you have already installed.
Extract them. Upload the files via BINARY mode.
No need to run installation. Just overwrite the existing files.
This will give you the core and plugin files.
1. First upload core files
2. Second upload plugin files. NOTE: only upload the plugin that you already installed. If you don't have it installed, you don't need to upload the patch file for that plugin.