I'm getting the same problem on FF with a Mac. I go to security preferences and list it as a site that should not be blocked, and it still gets blocked on every page I visit and shows just a basic page layout. I can get past it by clicking the ignore link on the bottom right of the attack page warning but again it shows up on every page.
When you do a Google search for RPF you see this:
#
Replica Prop Forum
This site may harm your computer.
Join our community where fans of the creative magic behind film share their passion for researching, building - collecting movie props, costumes, models!
www.therpf.com/ - Similar
In yahoo the listing appears as:
Replica Prop Forum
Join our community where fans of the creative magic behind film share their passion for researching, building - collecting movie props, costumes, models!
www.therpf.com - Cached
I do not see any problem with Safari, but I don't like using Safari.
Strange that it still won't allow the site even though I created an exemption through Firefox blocking. However if I disengage blocking entirely then I am able to visit the site unimpeded.