Problem with migrating from 1password 3 to 1password 4 [moved to email]

I think the database that I am working from is an older version than the one I was using before migrating.

Let me spell out the steps I took before I migrated and when I migrated in order to make the problem clear:

First, I normally use Chrome, but the day I upgraded, I was using Firefox. I followed the instructions for upgrading by adding a log in to 1password 3 just to make sure everything was up to date. Then I migrated, using Firefox. Then I upgraded on my Iphone 5, and at the same time, I also upgraded my IOS to the most recent version I reset the drop box synching. Then, I was having some problems with 1Password working at all, and I did what I was supposed to do to sophos...created the exceptions, and then 1Password was working fine, and I was a happy puppy.

Then I started noticing that it worked for some websites, but not others, and when I went onto Amazon, I saw that it had an old email address I was no longer using, and an old password. There was no other Amazon account in the log-ins of 1Password. This had happened with a couple things, but I don't remember what. It was with Amazon that I noticed it was old data, because of the email address.

So my question is, How do I use the back-up data from 1password 3 to bring the data from 1password 4 up-to-date?

Thanks,
M.