Ditto with regard to checking with your institution about purchase. If your stats background is limited, you will probably want to look into taking an SPSS class, or a general stats class that uses SPSS. Because SPSS is so powerful, it is typically difficult for someone with a limited background to use and interpret. I don't believe there is a manual because, as with any modern software package. If you have some spare time, what you may want to do is download a trial version and run the tutorial and see how easy you pick it up. The trial version is fully functional, and is free for 30 days. The file is huge though.