We've simplified how a ticket's importance is calculated. As a result many of your tickets have now become more important. Please see the changelog for details.
No, really. We expect the beta period to finish before February first 2007. Until then you may encounter some bugs. Good thing we have somewhere for you to report them huh?. We promise to fix any serious problems as soon as humanly possible, but we've been using it internally for months now and really don't expect you to encounter anything major. If that's ok with you please sign up for our totally free and unlimited beta (more details about the beta here). :)
P.S. We really appreciate feedback so feel free to submit lots of feature requests and bug reports using the links on the left under "This ticketing system".