STEVE,

 

What kind of error message did you get when compiling the project?

 

This is an example:

 

   Dim Image1 As New System.Web.UI.WebControls.Image()
   Image1.ToolTip    = "Insert today's date"
   Image1.ImageUrl    = "tools.gif"
   Image1.CssClass    = "CuteEditorButton"
   SetMouseEvents(Image1)

...

 

Another method to create a custom button is using the CreateCommandButton function:

 

        Dim ctrl As System.Web.UI.WebControls.WebControl
        ctrl = Editor1.CreateCommandButton("MyButton", "text.gif", "Insert My Custom Text")

        ctrl.Attributes("onclick") = "ShowMyDialog(this)"

        'add this custom button into the editor
        Editor1.InsertToolControl(pos, "MyButton", ctrl)

 

Example: http://cutesoft.net/example/howto/AddButtons/vb/create_a_custom_button.aspx

 

You can find the source code of the above example in the download package.