Well pretty much, your site which appears to be hosted off a home computer can not be accessed for a few reasons.
1: Verizon is blocking a crutial web port used by default which is port 80 inbound. You can get the port unblocked by getting business class DSL which costs a bit, or you can change the port your software listens on.
2: A router using NAT doesn't know where the incoming data has to go to and drops the data. Port Forwarding fixes this.
Edit:
PSP port:
3: A firewall is blocking the request.
Pretty much, there's a few things you have to check out. If you need help with port forwarding, go to
http://www.portforward.com . They have easy to follow instructions there.