Your temps are perfectly normal. As you can see from your screen shot, you're only at 52* at 50% utilization which is also good. There is also a "break-in" period for thermal compound so in all likeliness you're going to see those temperature drops a bit over the next few days as the compound breaks in.
That all being said, the phenom x4 965 max temp according to the AMD website is 62*, which is a bit on the low end for CPUs so I would just keep an eye on the temperature over the next few days to be sure all is well. I'm sure you're good to go.