Sony Ericsson :: K790a How Can I Install Java Signing Certificates On An Unlocked Java Platform Phone?

For a long time AT&T nee Cingular has locked me out of their MEdia (AT&T) Mall, and prevented me from running desirable apps by signing them with a "secret" certificate only available on their branded phones.Well, thanks to a2uploader and the recent acquisition of a locked AT&T phone I have been able to snag these Preferred and Trusted Java signing root certificates. As well as the entire AT&T customization package, which gives me a good template to play with my own if I so desire. (As an aside, I can also now download from the AT&T Mall using a Firefox add-on which allows me to spoof a particular supported phone's User-Agent string.)I digress. When I sent these certificates to my unlocked K850i it places them in the Trusted Cert store rather than the Java Cert store and the apps still have problems running and fail to install using the signed JAD. I have not tried it, but I assume my K790a will behave the same way.Now, the XML which defines the AT&T customizations references the certificates as well as the proper store location for them. Is this my only way to force a cert into the Java store? This also leads into how can I install client certificates?