storing maps on PSP

I need to go to Ma On Shan Sports Center tomorrow morning. I don't know the location and how to get there. Logically, average Hong Kong people will browse centamap.com and print a hard copy of the location. But my situation is different. I don't have a B&W or colour printer at home. What I can do is to save the image on to my PSP and bring along the PSP. Woo..... I have save atb least one paper by using electronic means to store something of temporary use.