IWButton CSS

I would like to use a standard TIWButton and set its CSS property so it appears like a TIWCGJQButton. I have already followed the suggested method and set the property to ui-widget-content ui-corner-all. That gives the button a themed appearance, but it does not show the hover styling. What CSS value do I need to make that happen?
I have an instance where some of the TIWCGJQButtons I placed do not recognize their TabOrder. In some cases they cannot be reached by tabbing at all. TabStop is set to True. I have played with the TabIndex property, but have not bee able to get those controls to function as needed. What is TabIndex for?
I have an instance where some of the TIWCGJQButtons I placed do not recognize their TabOrder. In some cases they cannot be reached by tabbing at all. TabStop is set to True. I have played with the TabIndex property, but have not bee able to get those controls to function as needed. What is TabIndex for?