picture stratching/manipulation - photoshop

[splintitan]

the picture i wanted to play around with is "the wall" picture with the guys outstreched mouth. want to put my face onto it but stretching one area of the face doesnt work well in photoshop... i remember a program back i the day that let you mess around with pictures like monalissa by pulling around with the mouse. anyone have an idea, program, or tip to do this in photoshop?
thanks

 

[UberNeuman]

If you're using Photoshop CS2, you can copy your picture into "the wall" picture as a layer, then use Free Transform, and then Warp to contort the layer as you see fit....

 

[Bootprint]

Isn't Photoshop's Liquify filter simular to KPT's Goo ?

 

[splintitan]

free transform isnt the way to go, maybe if i can free transform part of the image. i tried cuttin the face to trasform parts but that was a bad idea.
ill check out the Liquify filter, thanks.