see an example of EditableTables and Dialogs in action: How To Create A FogBugz Editable Table With Pop-Up Dialogs
FogCreek.FogBugz.UI.Dialog
CBugDisplayDialogItem
CDialog
CDialogItem
CDialogTemplate
CDoubleColumnDialog
CMixedColumnDialog
CMixedColumnDialogItemCSingleColumnDialog
see also FogBugz UI Elements