The message your getting has something to do with the Genocide kernel your running, I see it listed in the message. You could try to flash the regular Duel RFS/EXT4 kernel and then try that app again.
The Galaxy Tab email should work, as long as its CWM3 format which if you got it from TER or here in this forum we have it in CWM3 format.
BTW, I will post the link to the Dual RFS/EXT4 Kernel in the 2nd post shortly.
Great. I will try the Dual RFS/EXT Kernel later today to check that out.
and yeah the Galaxy Tab email i have is from TER so it is CWM3.
Thanks a lot.