Creating secmod, cert8, and key3

We would like our java application to create a mozilla cert store if one doesn't already exist, similar to the way firefox does. We currently install firefox and create a new profile specifically for our application. It seems that some IE types start convulsing on the floor if you suggest that

Where are the binaries for nss 3.12 and nspr 4.7.1?

Maybe I'm missing something obvious here, but where are the binaries for nss 3.12 and nspr 4.7.1? The most recent ones I can find are for nss 3.11 and nspr 4.6.4. We do everything in java here, so I've always used the binaries. Thanks, Larry ___