Multiple Forms Groups

I have two forms, one for ALL USER and other for on specific role security. when i saved this, a show error messagge:

Microsoft.SharePoint.SPException: Este archivo ya existe. (Excepción de HRESULT: 0x80070050) ---> System.Runtime.InteropServices.COMException: Este archivo ya existe. (Excepción de HRESULT: 0x80070050)
en Microsoft.SharePoint.Library.SPRequestInternalClass.SetGhostedFile(String setupPath, Byte setupPathVersion, Int32 iVersion, Guid& pguidListId, Guid& pguidDocId, Int32 lDoclibRowId, Int32 iAuthorId, String authorLogin, String serverRelativeUrl, String targetUrlWebRelative, Boolean isInDocLib, Boolean isMigration, Boolean isPublishing, Object varProperties)
en Microsoft.SharePoint.Library.SPRequest.SetGhostedFile(String setupPath, Byte setupPathVersion, Int32 iVersion, Guid& pguidListId, Guid& pguidDocId, Int32 lDoclibRowId, Int32 iAuthorId, String authorLogin, String serverRelativeUrl, String targetUrlWebRelative, Boolean isInDocLib, Boolean isMigration, Boolean isPublishing, Object varProperties)
--- Fin del seguimiento de la pila de la excepción interna ---
en Microsoft.SharePoint.SPGlobal.HandleComException(COMException comEx)
en Microsoft.SharePoint.Library.SPRequest.SetGhostedFile(String setupPath, Byte setupPathVersion, Int32 iVersion, Guid& pguidListId, Guid& pguidDocId, Int32 lDoclibRowId, Int32 iAuthorId, String authorLogin, String serverRelativeUrl, String targetUrlWebRelative, Boolean isInDocLib, Boolean isMigration, Boolean isPublishing, Object varProperties)
en Microsoft.SharePoint.SPFileCollection.AddGhosted(String sourceFilePath, String targetFilePath, Boolean bIsPublishing)
en edKiOalkdEcTklALKe.eWOJtsEeCiBbKvlRFl.eVetWZEKH(Forms )
en edKiOalkdEcTklALKe.eWOJtsEeCiBbKvlRFl.epsA6SR6W()
en edKiOalkdEcTklALKe.eWOJtsEeCiBbKvlRFl.eGHB8eT3v()
en edKiOalkdEcTklALKe.eWOJtsEeCiBbKvlRFl.elaqqCo4K(Guid , Forms , XDocument )
en FormsDesigner.Sharepoint.FDService.PublishForms(Guid listId, String contentTypeId, Guid groupId, Forms forms, String layout, ServiceFault& fault)

it means that exist two forms with same name NEW_FORM?? how change this name 's form ?

in SPD i see 4 forms type NEW. What is it mean?