Yes, AMD's stock heatsink and fan is excellent. It is very quiet even on my chip, which dissipates 89W of power 24/7. It does a good job keeping the CPU cool.
That IS normal but does look like cool and quiet is off. All in all i would not worry i have seen the 60's on my 754(forgot the fans on low). but i think that about 52 would be an average load temp. Once my cool and quiet was off and i had temps like that. so just be sure cool and quiet is on in the bios. and that power management in windows is set to minimum power management(with the cool and quiet driver installed)
either way i would not worry.
and the AS5 instructions say about the size of a half grain of rice in the center of the heat spreader. then the HSF will do the rest when installed. not like the older chips with the paper thin application.
I downloaded Everest and checked my OS idle and load (I loaded Battlefield 1942, for example). The temp when the game was active was 51* C; the idle, 41* C.