There 2 categories to be downloaded.
1. Portal, Forms, Reports and Discoverer (220.127.116.11.0). THis involves 4 zip files to be downloaded.
2. weblogic server 10.3.2 (wls1032_win32.zip under Installers with Oracle WebLogic Server and Oracle Coherence). This involves only one file.
As per your statement, you need to have the userid and password for accessing the metallink to download the patchset 5.
say If you are installing the fusion middleware(18.104.22.168), then it means that the you have all the patches released prior to 22.214.171.124; you should download the patch sets released after the 126.96.36.199.
Currently the forms and reports are part of Fusion middleware. Fusion middleware contains many more components. the components have to be selected/deselected while installing depending on the license you possess.
you can find out the certification matrix in the following url.
if u've installed the oracle database already, you need to chose the fusion middleware version depending on the oracle database version. Otherwise, you need to download both the oracle database 11g and oracle fusion middleware 11g. The link francois has provided is the link for downloading the fusion middleware only.