The fan indicator won't show as spinning unless you hook the fan sensor up as appropriate- consult your motherboard's manual. It's nothing to worry about if it shows as not spinning. Just means the sensor either isn't connected properly, or isn't working.
33C/91.4F is actually quite reasonable. I'd worry if you got up around 43C/110F, and I know other people don't even think that's unreasonable.
The temperature will vary greatly depending on the brand/speed of your processor, type of heatsink, fan. Just be sure the temperature stays relatively consistent when running, and if it ever spikes significantly over what it used to be. Keep your eye on it, you'll be fine.