Can't find Windows XP partition after repairing windows 7 bootloader

#1
Hello, i'm new to this, and this is what happened: I had windows 7 installed, then I made a new partition, installed windows xp on it, then ran the Windows 7 repair disc, so that it would load in the beggining windows 7, then opened easyBCD, tryed to add new entry with windows XP, but it didn't find one. Then i opened My Computer and windows XP partiton was gone, can u please help me?

Step by step instructions would be really great.