Last Friday Oracle released the latest patch set for 11gR1.
Unlike 184.108.40.206 which was available only as a patch applied to 220.127.116.11 this release is available as both a standalone install and as a patch applied to PS1 or PS2.
If you are running SOA SUITE 18.104.22.168 (PS1) or 22.214.171.124 (PS2) then you can read how to upgrade at http://download.oracle.com/docs/cd/E17904_01/install.1111/b32474/start.htm#CIHGJFGJ.
If you want to do a fresh install then instructions are at http://download.oracle.com/docs/cd/E17904_01/install.1111/b32474/start.htm#BABIHDCD.
OTN has a much improved download page that shows you all the components you need to download at http://www.oracle.com/technetwork/middleware/soasuite/downloads/index.html. Just select your platform and then expand “Prerequisites & Recommended Install Process” to see a list of all required components complete with download links.
Development have done a great job in making this an easier download experience, so go an enjoy.