Use of Hyper terminal is direct.

However, set the communication control in none and do not select X-ON / X-OFF or hardware controls.

Also set the baud rate properly, 8-bit no parity, 1 stop bit.

serial out of PC should be serial in of your 8051 connected to MAX202

To know correctly see where you find -9V and that is the output pin aming 2 and 3. 5 is GND.