Can't patch 32-bit JRE on 64-bit Win7

I use SPM to push out JRE updates to my clients.  It came to my attention today that the "Affected Platforms" for the 32-bit detection rules (ie jre-6u21-windows-i586.exe) does not have 64-bit Vista or Win7 included.  I have the 32-bit java on my 64-bit clients because we use a 32-bit browser (mainly for flash compatibility).  Is there a way to modify the detection rules?  ...or is this something I'm just going to have to work around?  (I'm pretty sure the answer is the latter.)

Thanks...