How do you test a jQuery UI Dialog using WatiN?

Question

I can't seem to get a hold of it!

First attempt failed:

string url = "http://jquery_ui_dialog.aspx";
IE jQueryDialog = IE.AttachTo<IE>(Find.ByUrl(url));

Second attempt failed:

Process[] processes = Process.GetProcessesByName("iexplore");
foreach (Process p in processes)
{
    if (p.MainWindowTitle == url + " - Microsoft Internet Explorer")
    {
        // this doesn't find it.
    }
}

3rd tries the charm?