I didn't do a lot of that stuff and it works fine for me. I simply used lsusb to get the vender and product IDs and plugged them in.
Code:
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2237", ATTRS{idProduct}=="2208", MODE="0666", OWNER="yourusernamehere"
You can use OWNER or GROUP, if you're experienced with UNIX, you know what the difference is, otherwise just use OWNER and put your username in.
Didn't have to do all that other stuff with adb_usb.ini or starting and stopping the adb server.