Since none of the links seem to work anymore due to megaupload and others shutting down, I thought I would post some files and links for others to save some time. I used these map files (i removed soem west coast maps and POI files to make it fit), the EZRider file attached, and the licenses attached to make this update work for me.
backed up \myflashdisk\apl2\igo\content
backed up \myflashdisk\apl2\igo\License
backed up \myflashdisk\apl2\igo\ezrider.exe
Navigate to \myflashdisk\apl2\igo\content and delete folders: Maps, POI, Speedcam, Buildings
Copy new : Maps, POI, Speedcam, Buildings : to \myflashdisk\apl2\igo\content
Copy new license files to: \myflashdisk\apl2\igo\License
Copy new ezrider.exe to: \myflashdisk\apl2\igo\ezrider.exe
any issues, restore your backups.
http://thepiratebay.se/torrent/6605297/USA_Canada_2011_Q1_maps
EZRider:
Remove the .zip from the end of the file to use
Generic License:
Extract and copy to your license folder