how to get ikspringsolver?

[plz_come_here]

hi i am using maya 8 i am not finding ikspringsolver is it extra script or plugin.. tell me if anyone knows.. i need quickly it is very handy ikspringsolver.. amazing.. and what tutorial amazing ..
tell me plz if anyone knows plz do this plzz

[crutch]

Did you type ikSpringSolver in the script editor? I'm assuming you're reffering to this tutorial http://www.digitaltutors.com/digital_tutors/video_details.php?v=814