Error 403 Website decling to show this webpage

[Liddletrucker]

I am trying to access this website. I have no other problems accessing other sites, this is the only one. I am using ie 7 and firefox. I get the same result on both browsers. I contacted my isp 3 times, they were no help. They stated that they could access the site.

windows xp, ie 7, firefox



http://www.ptl-inc.com/marketing/index.htm

Can anyone help me with this?