have you just got acrobat reader that comes free iwth everything or have you got "acrobat". acrobat comes with writer and is integrated with word and lets you convert your docs into pdf through word.
install it and then print ur document. when the print screen comes up select "cutePDF" as your printer and print. then save where u want ur pdf file to be saved.
this is the best pdf convertor i have come across. try it out.