First thanks for the updates, pretty cool! I love the new way to implement the tabs and accordions!
There are problems with the tabs though... I'm using WordPress 2.8.5 and newest php version.
I see the tabs titles as "tabs" but I can't really click and the content of the tabs is shown beneath each other - so no tabs-function at all..
I don't get any errors in Firebug and think that there shouldn't be any plugin-conflicts as I've been using all active plugins a long time now and there was a time when tabbed widgets worked perfectly ;)
Maybe you can take a look: http://www.onkelandy.com/blog/
On the right side there is a section "Persönliches" and within that there should be 2 tabs, one called "Musik", the other "Filme".
There is another problem in the admin area: I can't untick the "cycle through tabs" and "choose random start tab" option anymore. As soon as I unclick the options and hit "Save" they are activated again.
Thanks for your help!
By the way: would be cool if you integrated some background in the accordion titles like in the older version (with rounded corners?)