I hate to answer with the obvious... but if you have a support contract with IBM, why not just call IBM support? If you haven't seen it already, IBM's main JDK page is at: https://www.ibm.com/developerworks/java/jdk/.
However, the Windows offerings are pretty pitiful. IBM hasn't released a new JDK for the Windows platform since early-2006. That JDK was of the Java 5 generation, but there's no indication on the download page (or in the installer's file name) of an SR version. I can't install it and check for you, because of the other Windows caveat of which I hope you're aware: The IBM JDK will not install on a Windows machine unless the installer detects an IBM BIOS.
Given that IBM sold their PC division to Lenovo, I'm not even sure that it is possible AT ALL to install their standalone JDK on a contemporary box. I would contact IBM support if you have a contract... they might be able to tell you differently.
Either way, the preceding answer points at another possibility. IBM frequently bundles its JDK/JRE, without the crazy restrictions found in the standalone version, inside of other downloads. For instance, I know that WebSphere Community Edition (i.e. IBM's version of Apache Geronimo) comes with one. Good luck finding the specific version you need... but if you do, and don't mind the possibility of violating some license legalese, then you can just ZIP up that directory and copy it to the target machine.
This whole topic is a damn shame. In terms of bechmarks and runtime performance, the IBM JDK/JRE has always been awesome. However, on the larger "ecosystem" level it's always sucked.