I had been having problems with cydia with corrupt sources etc. and I edited the sources using CyberDuck and completely screwed up cydia I tried the apt-get install cydia method and kept on getting errors so I found out how to do this if you have done something similar to me. 1. You have to make sure Cydia is completely removed before you try and reinstall it, so type into terminal Code: su alpine (or whatever your password is) then Code: apt-get remove cydia 2. Get the latest copy of Cydia (I will upload the current version as of 10/5/10) from Saurik's Site and the attached package "Essentials" 3. SSH the files over to your iPhone/iPod Touch /var/stash using your favourite SSH program 4. Open Terminal on your iDevice and type Code: dpkg -i essentials cydia then respring using SBSettings or Terminal, also make sure you are in the var/stash directory by typing 'cd var/stash' in the terminal Code: killall springboard Done! EDIT: Come on.. Reply if this worked for you!