BleepingComputer.com: installing software in ubuntu 10.10

hello evry body just i am new to this discussion forum
and also iam new user of ubuntu operating system.
and i was trying to read more tutorials and question and answer on various websites abount ubuntu(linux) but still iacn't find any solution
so i hope you will give me an accurate answer for my qoustion.the problem is iam install ubuntu 10.10 but i cant install any software
when i was trying to write in the terminal like"sudo apt-get install update" the out put is like this
"Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package update" for the other software also the same problem also occur.
please help me
iam waiting for your responce
thanks

This post has been edited by hamluis: 01 June 2011 - 04:39 PM
Reason for edit: Moved from Live Linux to Linux/Unix.

Are you trying to install a particular program or are updates failing? I have had problems with updates in Ubuntu 10.10, I have it resolved for now, there is a topic regarding that here.