Has anyone used SmartForms as the default list forms in SharePoint 2010?

I'm wondering if anyone has created SmartForms for use as the default forms in SharePoint 2010. I know where in SharePoint designer to configure the URL of the forms on the content types. But I'm not having any luck.

What I've done so far is to create a wiki page with the SmartForms web part on it. (This is for the new form.) When I drop the URL to that page, I'm getting a correlation error with this in the ULS logs.

System.ArgumentException: Invalid field name. {3881510a-4e4a-4ee8-b102-8ee8e2d0dd4b}  /sites/CTUGDemo1/Lists/Requests   
 at Microsoft.SharePoint.SPFieldCollection.GetFieldById(Guid fieldId, Boolean bThrowException)    
 at Microsoft.SharePoint.SPListItem.get_Item(Guid fieldId)    
 at Microsoft.SharePoint.WebControls.SiteActions.ShouldShowEditPageMenuItem(Page page)    
 at Microsoft.SharePoint.WebControls.SiteActions.CreateChildControls()    
 at System.Web.UI.Control.EnsureChildControls()    
 at Microsoft.SharePoint.WebControls.TemplateBasedControl.OnLoad(EventArgs e)    
 at Microsoft.SharePoint.WebControls.ToolBarMenuButton.OnLoad(EventArgs e)    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Control.LoadRecursive()    
 at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

 Wondering if anyone has a successful approach.