Hi people! :-)

I'm busy with the 301 URL Tracker, it's not compatible with umbraco 4.5 yet.
I'm facing one particular problem in my custom Create dialog page, with this markup:

<input type="hidden" name="nodeType" value="-1"/>
 
<asp:Label runat="server" ID="lblMessage" Text="Please select a valid node" Visible="false" style="color: Red; font-size: 90%; font-weight: bold; display: block;" />
<b>Select a node:</b>
<br /><br /><asp:PlaceHolder runat="server" ID="phContentPicker" />
 
<!-- added to support missing postback on enter in IE -->
<asp:TextBox runat="server" style="visibility: hidden; display: none;" ID="Textbox1"/>
 
<div style="margin-top: 15px;">
   <asp:Button ID="btnSelect" runat="server" OnClick="btnSelect_Click" style="margin-top: 14px" Width="90" />
 <em> or </em>  
   <a href="#" style="color: Blue; margin-left: 6px;" onclick="parent.closeModal()"><%= umbraco.ui.Text("cancel") %></a>
</div>

I copied this from a blogpost or some other package (don't know anymore) and it works perfectly in 4.0.x.
The code-behind looks like this:

public partial class Create301URLTrackerControl : System.Web.UI.UserControl
{
  ContentPicker cPicker = new ContentPicker();
 
   protected void Page_Load(object sender, EventArgs e)
  {
     cPicker.ModalWidth = 380;
       cPicker.ModalHeight = 200;
      phContentPicker.Controls.Add(cPicker);
 
     btnSelect.Text = ui.Text("create");
   }
 
  protected void btnSelect_Click(object sender, EventArgs e)
    {
     if (Page.IsValid)
      {
         int nodeId;
            if (int.TryParse(cPicker.Value, out nodeId) && cPicker.Value != "-1")
           {
             string returnUrl = umbraco.presentation.create.dialogHandler_temp.Create(
                   umbraco.helper.Request("nodeType"),
                 0,
                    nodeId,
                   new Node(nodeId).Name);
 
                if (string.IsNullOrEmpty(returnUrl))
                 Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "refresh301URLTracker", "top.reloadCurrentNode();\ntop.closeModal();top.refreshNode();", true);
              else
                    Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "refresh301URLTracker", "top.reloadCurrentNode();\ntop.right.location.href = '" + returnUrl + "';\ntop.closeModal();top.refreshNode();", true);
           }
         else
                lblMessage.Visible = true;
        }
 }
}

So I'm using a ContentPicker, which is located in 'umbraco.controls'.
The problem is the javascript I register with 'Page.ClientScript.RegisterClientScriptBlock()', I'm getting the following errors and don't know the replacements for there javascript methods, can anyone help? :-)

Sys.ArgumentException: Value must be a DOM element or a text node. Parameter name: element
This error is thrown inside a ScriptResource.axd (Sys.UI.DomEvent._ensureDomNode)

top.reloadCurrentNode is not a function
This error is thrown by the javascript itself. Also top.closeModal() and top.refreshNode() do not work...

Umbraco.Controls.TreePicker is not a constructor
This error is thrown in the create.aspx mark-up: var 
mc_ctl00_body_ctl00_ctl00 = new 
Umbraco.Controls.TreePicker('ctl00_body_ctl00_ctl00','Choose 
Content','ctl00_body_ctl00_ctl00_ContentIdValue','ctl00_body_ctl00_ctl00_title','/umbraco/dialogs/treepicker.aspx?rnd=15fa7676b6b34c87aa4cf68abb466650&id=-1&treeType=content&contextMenu=true&isDialog=false&app=content',380,200,true,'/umbraco');Sys.Application.initialize();