I had my alumni interview in Nov, 2006. The interviewer was a very nice Chinese lady.

Questions asked were pretty standard ones:

1. Walk me through your resume
2. Why MBA?
3. Why Chicago
4. Leadership experience
5. Teamwork experience
6. Ask me whether I have any questions for her

Following the interview, we also chatted in Chinese for a while about life in Chicago, GSB campus, etc.

Hope this may help CDers in Round 2.