I have located the issues on the back-end, and have applied the fixes for verification emails to go out. If you never received an email verification, I went ahead and authorized all of the pending verification accounts, so you should be able to now login. also, for the time being, please use the forums for posting any issues with the UPAI. This link will get you to the proper page, to do so.
I am revamping the current Forums module, and will probably have it offline for the next week or so. i am checking the above page on a very regular basis through out the day, and will do my best to reply to your issues ASAP.