find out

Hi there evryone sorry in a advance just in case I’m not in right forum! wordpress it’s been downloaded to my computer, successfully, but tell you the truth i don’t have a clew what to do with it!? I just finish my study on Win 2003 standard edition, I’m working with Xp.
my question is, whether i can use this program and where can i read to understand better. thank you, I’ll appreciate to get some answer.