Nitro should work, though it was just updated for SC v2.7, RoyalBread will not wrk as its for AOSP not SuperClean, Touch of Blue should work for SuperClean as wellhow are you trying to install? dont use rom manager...reboot recovery manually, wipe cache partition and in advanced wipe dalvik cache...then install zip from sd cardNitro, A Touch of Blue, RoyalBread, anything, really. Tried a bunch.