Why can't any of my v1.0 users log into v2.0?

i figure if I post here & submit a ticket, I'll have better luck, as I need an answer fast.

I upgraded to v2.0 tonite and am immediately regretting it. Here's what happened:

I upgraded. I then added the email addresses of the previous users. In v1.0, we all used an Invite Key, or whatever they were called, and folks didn't have individual passwords. This was incredibly nice, and I miss it already.

When I added the user email addresses, it included my secondary email address (my test account). At my secondary email account, I received an invite to join. Odd, since I was already a member during v1.0.

I followed the link, where it asked for my password. I entered the Invite Key from 1.0. No dice. I tried everything I could think of - but I was unable to log into the wiki even though I was a member with that email address in v1.0.

I don't have the most technically apt users. It took forever to get them comfortable with the wiki. If they can't log in come morning, they'll run away from the wiki again.

Please help!

- Michelle