That's actually the page I followed when first downloading the game. CoDWaWmp.exe wasn't ever corrupt when I got it. But I downloaded fixed version anyway, to try it out I guess.
I do everything that anyone with the cracked version basically does. Launch Private Client Patch, launch game, press F3 (a couple times just for good measure), then find server, and join. I've added the servers in the Favorites tab, cuz it was more convenient. Never had a problem with it for the longest time, until now. It shows the IP, but just acts like the server is 'non-existent'... I've also tried connecting manually. I press (~), then </connect (IP)>. And it 'tries' to connect, but it says (Connecting to server... <wait time>), counts to 11, then crashes with that error popping up. Usually I give it a couple hours, but it's been like that all yesterday, and today. I've restarted my router multiple times, in case it was my end (plugs are still where they're supposed to be.) Also, it can't be my end, cuz I can connect to CoD4 servers just fine. Played a nice match a few hours ago. Man I've tried everything.
Note: I looked on all other JFF servers, cuz I wanted to see if I could try and connect to a different one. Went to a Hardcore server (#2 I think), but the IP was the exact same as the #1 server. Port number as well. (And I didn't mis-click, I went back and forth between server pages to make sure.) Weird. Still tried it. Copy/Pasted it, still gave me the same error.
P.S. Sorry for this wall of info.