GROUP A: Patients receive temsirolimus IV over 30 minutes on days 15 and 22 for course 1 and on days 1, 8, 15, and 22 for all subsequent courses. Patients also receive cixutumumab IV over 60 minutes on days 1, 8, 15, and 22. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.