[ubuntu] Unetbootin help

view full story

http://ubuntuforums.org – Where I can download a good version of Unetbootin to load on a pendrive? I downloaded one from this address -http://sourceforge.net/projects/unetbootin/files/UNetbootin/180/unetbootin-linux-180/download- However, when I tried to load it on my computer, I was told that it had corrupt kernals. I'm new to computer work and linux, so I have a few questions, namely where I can find a working version of Ubuntu, or how I can fix the kernals now. (Hardware)