By removing the partitions and formating you have destroyed any data on that drive. If you wanted partitions, you should of done that before the XP home install. Your other options are to redo everything or use partition magic once all installations are complete to shift the partitions around and make another.
A+, Network + , HP Certified Tech and MCP
Specs: AMD Phenom II X6 1095T, Asus M477TD, 8GB GSkill Ripjaws DDR3 1600 7-8-7-24 1T, 128GB Crucial M4 SSD, ATi HD4650, W7, 27" HL272 Monitor