Hi guys, I am using a Maxis line. I can't seem to enable MMS on my HTC Hero. Any help guys?

I followed this but it doesn't work.

  1. Press Settings and select Wireless controls.
  2. Scroll to and select Mobile networks and select Access Point Names.
  3. Press the Menu button and select New APN.
  4. Select Name and enter Maxis 3G MMS.
  5. Press OK.
  6. Scroll to and select APN and enter unet.
  7. Press OK.
  8. Scroll to and select MMSC and enter http://172.16.74.100:10021/mmsc.
  9. Press OK.
  10. Scroll to and select MMS proxy. and enter 202.75.133.49.
  11. Press OK.
  12. Scroll to and select MMS port and enter 80.
  13. Press OK.
  14. Press OK.
  15. Press OK.
  16. Scroll to and select APN type and enter MMS.
  17. Press the Menu button and press Save.
  18. Make sure the new profile is selected.
  19. Press the Home button to return to the main screen.
  20. Your phone has been configured.

Questions
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What should the MCC be?
What should the MNC be?
What should the MMS Protocol be?
What should the port be(not the MMS port) be?