No, there isn't. Normal Msstyles do not allow for these kind of effects, as far as I know. FAK only modifies system files for a consistent mac look, and there's no way it can help here. The only solution is WB, which, imo, is by far a better method than msstyles as it's faster and you have much better themes for it...Why don't you try it out?
Edit: If you only want the taskbar and menus to be transparent, then maybe you don't need WB. Y'z Shadow allows you to set menu and taskbar transparency as well as many other such free tools.