Download and install core temp, you'll get more accurate readings. The load temps are a little high, but nothing to worry about. Please tell me you remembered to clean the stock paste off the bottom of the hsf before putting on more.
Yep - use core temp even though TAT isn't too far off.
Get latest BIOS, as they reworked the libraries that does the CPU Core 1 and 2 (Seen in Core Temp) to CPU temp (Seen in PC Probe) translation.
There seems to be a 10C difference between Core temps and the nominal CPU temp - so where Core Temp goes to 60C, you *might* be in the 50C range.
The alarm errors are generated from the PC Probe software, which by default have really low settings. You'll have to adjust this.
Also, it seems as though your CPU temp is higher than TAT, and even though at this point it's not very accurate, it's still wrong - TAT and Core Temp will be higher than your CPU temp based on what was said above - so I'm hoping a BIOS update will fix this. My P5B went from 1C offset between Core and CPU, to 17C offset, of which +-10C I consider to be valid.