The PF pads don't squeal at all if bedded in properly: I ran them on my old car and there was no noise at all. Bed them in again properly and they should be fine, maybe take them out and put some copper grease on the back again too.
As for wheel cleaning, get something decent from Tim at Envy: I've just started using the Espuma Revolution and it's fantastic stuff, a billion times better than the crap you can buy in Halfrauds although you need to be respectful with it.