Hello
If these controls are inherited from standard components (like TCustomEdit, TCustomComboBox and other) then they may be supported without problems I think.
You only must use sSkinManager.ThirdParty property editor and add required types there.
If these controls are not standard and have a non-standard implementation (I haven't an experience of IBObjects using, unfortunately) then must be added a lot of special code to the AlphaControls package for support of them.