I don't remember if I installed my dictionary file, or placed it in the directory manually.
Mine are located in the path below. If you don't have a hard drive in your Zaurus, try looking below /QtPalmtop
/hdd3/QtPalmtop/share/zbedic/en-0.9.0hdic
"en-0.9.0hdic" is the dictionary filename.
To load a dictionary into Zbedic, settings -> Dictionaries -> Add