How do I use multitasking on an Ipod touch 2nd generation with iOS 4?

first of all i think you have a ipod touch 3rd gen becouse of the time you buy it, and i think you shuld press the home butone 2 times and youl see all the programs you are runing... and if that doesnt work you cant use spirit in ios 4.0 youl need another program and in this video you will find the steps for the most esay jailbreak so far (for ios 4.0)...a href="http://www.youtube.com/watch?v=UjwC7gQYV-M&playnext_from=TL&videos=MP2eSAThfG0" rel="nofollow"http://www.youtube.com/watch?v=UjwC7gQYV…/a