OK, a little bit of a hack, but is is working
use this little rackspace script
//$<AutoDeclare>
// DO NOT EDIT THIS SECTION MANUALLY
Var
KNOB : Widget
TEXT : Widget
BLUE3 : PluginBlock
//$</AutoDeclare>
// Called when a single widget value has changed
On WidgetValueChanged(newValue : double) from KNOB
TEXT.SetWidgetValue(GetParameter(BLUE3, 24))
End
And this is the example gig
ShowParameterValue.gig (38.6 KB)
The Parameter 24 you see in the top of the plugin window when you move a plugin parameter.