If I'm clear on your issues...
Applying the tweak more than once is unnecessary, but is not going to cause any problems.
The settings applet is supposed to be there in that version of Coderus' unrestricted-ui.
If you had other results, I'm not sure why, but Coderus' unrestricted-ui has no option for battery icon. MAG's unrestricted-ui, however, gives you the option for just icon or both, icon and percentage.
Hope that answers them all...