Internet

Hi, I have a Sony Ericcson k800i and I can connect to the internet for it and now I am trying to connect to the internet from it to my home PC. It connected and on my PC it tells me the LAN is connected and all seems fine. The problem is that it still doesn’t display a web page. I tried to repair the driver and it said it couldn’t complete this because it couldn’t clear the ARP Cache and to contactthe network administrator. Waht is this and where do I find it and more to the point does anyone know how I can get this to work. The funny thing is when I try to connect via dial up the phone acutally starts to call a number which is then rejected so I know it is connected to a certain extent. Can anyone help me.