Is it possible you're using it wrong? I can see the confusion in my naming now (but ABM.INPUT_TEXT and ABM.INPUTTEXT_ALIGNRIGHT are two different constants).
usage:
Dim inp2 As ABMInput
inp2.Initialize(page, "inp2", ABM.INPUT_TEXT, "Last Name", False, "")
inp2.Align = ABM.INPUT_TEXTALIGN_RIGHT
Please some more info on extracssfile not working, as I use it all the time myself and haven't found any problems with it.