[Crash-utility] how to analyze a 32bit dump with a 64bit crash

Hi All My laptop has 64bit fc6 and crash utility. One of the development machine is 32bit RHEL4. whenever i try to open the dump generated by that box, I got a unknown format error. i can analyze the dump with the crash from that RHEL4, and also my laptop can analyze the dump from another 64bit RHEL4. so my question is how to allow the crash in a 64bit box to open a dump from a 32bit box? Thanks! Ming