it is a glitch...i have a full descriptive tuttoral how to do it.

----Added 24/8/2010 at 7:55 AM----
the tutorial is in the same catagory as this thread but its 2 spaces below yours.it has 2 glitchs you can do and they are both very helpful(for me at least).PM me if you have trouble finding it or if you need help doing them.