To determine if they are SoftStart, try this test with your lamps:
Use the Mini controller to turn them on, and watch the lights.
If they come on instantly at full brightness, they are NON-SoftStart.
If they take about 2 seconds, and dim up slowly, they ARE Soft Start.
The non-SoftStart modules can't understand or respond to the Extended Dim commands. Since version 3.302 (January 2011), the "Lamps" category in AHP is for the newer, SoftStart modules, and the :Old Lamps - No SoftStart" category is for the older, non-SoftStart ones.
If your lamps are not SoftStart, you need to edit the module, change the category to the "old lamps" one, and then re-select the correct module type.