Anyone tried the new update " Time Machine and Airport Update"???

Not yet... I don't feel brave enough.

Me too, I really need Time Machine working..

don´t do it, you´ll break your install.

Thanks for information

http://img337.imageshack.us/img337/9788/tmupdateqq3.png
backup your kernel, system.kext and before reboot replace it with the old one

Can you replace the old kernel and system.kext after the reboot? My install is broke from that update =(

[EDIT: sorry misunderstood the question :) ]

are you in windows? you can use macdrive or transmac, copy the old kernel(root) and the system.kext(/system/library/extensions), then copy the patches folder to the leo root and boot with -s and type

mount -uw /
cd /patches
./replace.sh
./patcher cpuid.txt

I don't have my old system.kext, Is there anything I can do?