are don't go installing stuff the offline way when you have net.
first, ensure that the net is conected. For that, access the digit forum thru firefox to confirm.
then go to applications==>Assosaries==>Terminal
when a terminal window opens, type the following lines within it:
	
	
	
		Code:
	
	
		sudo apt-get install lokkit
	 
 now lokkit is installed.
then you can use lokkit.
and yes, if you want other software like Xine, VLC, etc, I can give you that code too. Just do
	
	
	
		Code:
	
	
		sudo apt-get install <package1> <package2> <package3> <this_continues>
	 
 or just browse for them in synaptic package manager.
All available software like the one above, have websites which give instructions like the one I, Prakash, etc gave you. You can follow them to install thousands of software packages.