I don't think it matters because weren't they all the same file but just different ways to install them?
Maybe a step by step will help you:
1. Turn on Internet Tethering on your iPhone
2. Turn on Bluetooth on both iPhone and your mac.
3. Go to Bluetooth Assistant on your mac and when this:
http://kttns.org/ogy4o window comes up, click on Mobile Phones and Click next.
4. You should see the iPhone in there.
5. Click next and it will display a passcode and you should see that same passcode on your iPhone too.
6. Click next if you do see that passcode on that iPhone.
7. Pairing is done.
8. Now all you do is turn off Airport and Go to Bluetooth System Preference pane and select the iPhone and click the gear and then click connect.
9. That should do the trick.