wireless router

hi
I have a wireless router (iptime pro 54G www.zioncom.net the model is ip0418)that I want to use to get internet access but I want to uses the wireless port and not the wan port
If i creat a pppoe connection on the router it connects to the internet but i can not surf the internet from my pc I am using win xp pro
Can some one please help me with the setup or config of the router and pc