I agree the latest FW version is 30.x.x.x, however this may not be the answer to such fundamental failure.
Another publisher had a similar failure on a device, see thread Ovi QA : Failed Case NEC 1.2: Download/Install/Launch/Delete. This transpires that the QA load process does not like SIS extensions and wants SISX extensions. Reloaded ok now.
One publisher found his uploaded media had got corrupted, and simply uploaded the file and another used libraries not installed by default
This all assumes you have Symbian fully signed, not self signed. If Java verified
some one else might help