* Delegates at Ethiopia talks meet mediators, but not each other
* Fighting reported outside Jonglei state capital
* More than 1,000 people killed since start of violence (Updates with U.S. evacuations in paragraphs 14-15)
By Carl Odera and Aaron Maasho
JUBA/ADDIS ABABA, Jan 3 (Reuters) - South Sudan's government and rebels finally began talks to end weeks of bloodletting on Friday ...