I Get an error about an incorrect CAPATCHA when I try to send a message via the contact page (http://www.fuelly.com/contact/). However no CAPATCHA or CAPATCHA field was displayed.
I have also had to log in each time I want to add a new fuel-up since the web site was updated... This is very cluncky and annoying. The old site would remember me so I could just click "Adfd Fuel-up and then fill in my info.
What browser are you using? Have you tried any others? Does the browser have any ad-block/pop-up blockers enabled? Can you try disabling them and then trying the contact page again?
As for the log-in issue, please clear your browser cache and delete all Cookies related to "www.fuelly.com" and "fuelly.com" then try again.