Ah, forgot to mention that when I tried to access that website, it was on the host machine. And yes, I can use my web browser in my virtual machine. As far as networking goes, I've tried Shared Networking (where all data requests go through Microsoft Virtual PC) and creating a direct link between the virtual machine and the host's network card. Neither has made a difference. Also, I only run one virtual machine at a time, and I do not have Lime Wire installed on my host. The instance of Lime Wire on my virtual machine is the only one on my entire home network. I also have Windows Firewall configured correctly.

I found the checkbox to enable UPnP on my router, but if you suggest port forwarding, the can you suggest settings for my router, Lime Wire, and Windows Firewall that I should try. I don't have much experience with networking.

Thanks for your help!