I had the same problem myself after first purchasing T2 (just a few weeks ago).
Apparently, the Tropico 2 web site (namely the registration section) had been hacked and was infected with a few nasty trojan viruses. Some you may have noticed that the site had been offline for the past 2 weeks or so, this was due to your's truly informing Take 2 that their website had been hacked and was attempting to infect anyone connecting to it to preform the registration...
That explains the "WTF" text on the page. Thanks for the info, I use Opera and have a personal firewall, so whatever infection routine was probaby blocked but I better scan just in case.
Seems like the entire site is down at the moment, hopefully they will bring it back soon and I can grab the scenario.