Chances are you need to install MobileSubstrate first. However, before we get into that, uninstall iBlacklist... see if the problem persists. Report back to us...
SBSettings is a wonder really. You get the functionality and such, and it installs some very useful tweaks like Activator, Mobile Substrate and Safe Mode, all of which comes in really handy IMHO. Props to BigBoss
Thank you SO very much guys, I am loving my jailbreak after waiting so long I finally get what I want, though is there any sources or tweaks that is a MUST HAVE!!!?
On the homescreen of Cydia, tap on "Featured". Many of those tweaks/apps are recommended. The rest would depend on what you're looking to do with your device
@suekams : what vers of Evasi0n did you use to jailbreak ? .. If it is vers 1.0 ? if it is then open cydia app then go to "changes" .. There'd be an update from Evasi0n to fix this ..