The purpose of this study is to test the safety and effectiveness of 2 drugs, perifosine in combination with temsirolimus in children with solid tumors. Neither drug is currently part of the standard treatment of solid tumors in children. Both drugs have been tested alone to treat solid tumors in children with little success. There is now new insight that if given together, perifosine and temsirolimus may work together to stop the growth of solid tumors and may also make them shrink. The doctor wants to find out what effects; good and/or bad, perifosine in combination with temsirolimus has on the patient and the cancer. The doctors are testing four different dose schedules of perifosine with temsirolimus and the patient will be asked to partake in one of the dose schedules. The dose schedule will be lower for those enrolled early in the study.