ok, ive read a couple articles and said that john entwistle used a overhand fretting style that was uniqe? what is overhand fretting and how to u play it?
I'm not sure what you mean, what comes to mind though, is the technique that Joe Satriani uses in 'The Mystical Potato Head Groove Thing'

Here's a lesson for it;
I deeply regret the 6661 in my username. Siiiigh. Damn you, 14 year old me, you edgy little bastard.