How extract this?

[jeninic]

How extract this firmware?
http://uloz.to/xMmG58Td/firm

My output:
DECIMAL      HEX          DESCRIPTION
-------------------------------------------------------------------------------------------------------
19931315     0x13020B3    TRX firmware header, little endian, header size: 28 bytes,  image size: 71744614 bytes, CRC32: 0x800000 flags/version: 0x2359E9AA

Extracting 0 bytes of  header image at offset 0

ERROR: No supported file system found! Aborting...