After updating the jquery to 1.3.1 the "main" scripts for the fancy teasers work fine, except a "sub" script used for the carousel teaser:

When you click on the switcher buttons it doesn't scroll correctly
through the elements. It switcher much further than the last element
is placed.
So if you click to the last possible accepted click it lands on a non
existing element. The same counts for the slider.

(It only happens if an extrasArea exists. I think the sliding/switching behaves the same as if there was no
extrasArea. Because without an extrasArea they behave correct, and with an
extrasArea they slide with the same speed as if there was no extrasArea.)

After reloading the page the sliding works fine. It looks like the script used for the inner part of the carousel needs a jquery update too.