Hi Mehmet,
the capacitor are obviously bypass capacitors for stabilization of the IC's supply voltage. Their values are not critical. I would say 2,2µ ...10µF for the tantalum capacitor and 100nF..470nF for the ceramic capacitor.
There are two possible reasons for the resistors at the inputs:
a) limit input current in case of the signal voltage exceeds the supply voltage range. In this case, 1kOhm ... 10 kOhm would be suitable.
b) pull the input voltage to some defined level if the input is not connected, in order to avoid oscillation and reduce supply current. For this application, anything between 10kOhm and 100kOhm would be suitable.
If I would have to design the circuit, I would implement both, i.e. two resistors per input: a 1kOhm serial resistor for IC's input protection, and a 47kOhm pull-up on each input.
Otti
Edit: (cross posting) Ok, obviously, the original resistors are for input protection. Anyway, I would recommend to add pull-up resistors as well, at least for inputs that are not used in your application. Alternatively, you could simply plug "jumpers" on the unused connectors in order to connect signal input with (+).