Please please help

Hi there....

I just bought an Airport Extreme Base Station yesterday here in New York for my mom back in Ireland as a gift... I am so clueless into setting it up so you could imagine what my mom is like... hehehehe..... I would be so so so grateful if one of you could post a step by step set-up to get connected wirelessly... I'm afraid that in the setup it may ask for something like ip addresses or whatever and she will not have a clue... Please please help...
Thank you so much...