installation is really simple if you have the previous version running..although i installed via ubuntu so..it was easier for me..format your existing ext3 partition..copy rootfs onto the partition. Then on the phone on xterm first type sudo gainroot then mkdir /and then mount /dev/mmcbkl1p2 /and then simply run dpkg -i /home/user/MyDocs/.nitroid/nitdroid-ke(press tab it will auto complete the filename) and press enter. Reboot select your ooption on multi boot