I found this guide at www.expansys.com forums, worked for me - better media player, my media headset controls now work fully! I'm chuffed, good update. There's also a similar one for the Internet Version, which I haven't tried yet.
Although everyone says *THIS WILL VOID YOUR WARRANTY* so do at your own risk.
*** ALSO THIS HAS "BRICKED" SOME PEOPLES PHONE SO ATTEMPT AT OWN RISK ***
How do i upgrade my N73 firmware to N73ME.
1) Download and install Nokia PC Suite. http://www.nokia.com.sg/nokia/0,,88454,00.html
This program allows your PC to recognise your mobile phone.
2) Download and install Cable driver. http://www.nokia.com.sg/nokia/0,,88481,00.html
This program allows your PC to recognise the USB cable.
3) Download Nemesis Service Suite and install it. http://mobilewireless.tripod.com/nem...vice_suite.zip
This program allows you to change your mobile phone''s product code.
2) Download Nokia Software Updater and install it. http://www.nokia.com.sg/nokia/0,,97406,00.html
This program upgrades your mobile phone''s firmware.
3) Now connect your phone to the computer and choose PC-Suite mode on your mobile phone.
4) Start Nemesis Service Suite
5) Push "Scan for new device" (On the top right hand corner)
6) Go to Phone Info screen. In the right corner, you''ll find box called Product Code.
Change that product code number to your preferred code(see below) and click Enable.
Then click WRITE and in few seconds click READ, and you''ll see that your phones product code has been changed.
7) Now you can start Nokia Software Updater to flash your mobile phone.
0539343 -> APAC 1 -> Chinese, English
0539346 -> Philippines -> English, Indonesia, Malaysia, Philipino
0539349 -> Australia/New Zealand -> English, Indonesia, Malaysia, Philipino
0539352 -> Indonesia -> English, Indonesia, Malaysia, Philipino
0539354 -> India/Vietnam -> English, Indonesia, Malaysia, Philipino
0539351 -> Thailand -> English, Thai
Enjoy!