Good news and bad news:
Good news:
Wowemu comes with a webserver. If you were able to read down to step 4 of the guide you posted you would see there that the pack you downloaded has that pretty website.
Bad news:
If you have followed that guide and you still don't see the website I can't help you much. You probably aren't using WoWemu if you followed that to a T.
If you are using WoWemu however, here is the fix.
Remedy:
When WoWemu finishes loading you will see a line of code saying something to
Helper libraries loaded... bla bla blah... and three lines that have port numbers in them
usually 8080, 8085, and 3724.
8085 and 3724 are standard. These ports are what lets WoW run over the network/internet. the 8080 one is the one that could change depending on how the emulator config file is set up. this is what port the website runs on. so whatever port you see there type in after your ip address. example;
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there is a folder in the wowemu server folder called www. this is the website, and the folder that all the files for it are contained in. To change the port number to something different edit the emu.conf file. Look for the http port line in the file. and enter whatever port you want. If your ISP hasn't blocked port 80 id use that. More often than not they have though. I think the config file is under the scripts directory. Hope this helps. And make sure your firewall ports are open for all 3 ports... otherwise noone will see your server.