Get a visitors name to show up on my Facebook Page?

[Tony N]

I came across a piece of code that someone else was using in their FBML page that when someone visited your Facebook Fan Page, it showed the name of the person visiting. Here's the page go check it out: http://www.facebook.com/kk.fan.club?v=app_11007063052
Here's the code: <b>Welcome, <u><fb:userlink uid="loggedinuser" /></u></b>
The only problem is that he is using it in an old FBML app (and it works) and I need to do it in an iFrame app.
Any ideas? This would be really cool.
There totally has to be a way to do this.

[abraXus]

you cant use an iframe for that, because the iframe page isnt hosted on facebook

in order for fbml to work, it has to be on a facebook page