I've been trying Fission out for a few days and installed the Galaxy S theme, but like the look of this theme better. When I went to install this zip, it worked, but went really, really quick like it hadn't done its job and there were no changes when I rebooted the phone after. It should work fine and overwrite the old theme, right? Is there anything else to try or could I manually do it? Or would that be really time consuming?