Soften tool in Photoshop CS3?

I've checked the memories and can't find what I'm looking for in there but not too long ago I switched over from PSPX to Photoshop CS3. In PSP I used to be able to soften the skin in an icon using the soften tool but I can't seem to find the soften tool in PS, I'm not sure if I'm missing it or if it's called something different but I miss it so could anyone help me please?