From the postfix which your cell phone created, you must be using eti I. That version really has some difficulties to play in PC. You can find eyecon this program from the net, then transmit .eye file into .avi file.
Alternatively, you get eti II which can easily play in PC. You can find eti II from:
ETI Camcorder - cell phone recorder - ETI Camcorder Pro /download.html
Regards