So I did it
The dryer is my new best friend
I stapled, used the dryer, stapled some more, used the dryer, pulled LOTS of staples out to make it perfect...well as perfect as I could get it being I have no upholstery experience. Even went out and bought a new wide crown staple air gun since my manual one wasn't good enough.
I tried to follow everyone's suggestion by putting a few staples in the front, then some in the back and working with the sides but I couldn't get it to work. I couldn't get the horn up against the foam.
So I started at the front very narrow horn, and worked my way back....and here it is.
Hopefully, the seat holds up and stay this way.
Thanks for everyone's help!
dinky,