Get your PCB first, but you can also using DIP style ATTiny and using your bread board and follow the connection from schematic above.

If you have access to making a PCB this is the Gerber files or you can also using SOIC-break-out-board

Solder the chip according to this list of pin usages :

PB0 : RX/TX purposes

PB1 : SERVO A / SERVO 1

PB2 : SERVO B / SERVO 2

PB3 : SERVO C / SERVO 3

PB4 : SERVO D / SERVO 4

PB5 : SERVO E / SERVO 5 or RESET pin (disable from fuse bit to enable this channel but you can't program the chip with standard ISP programmer)

Burn the chip with this hex file and set the fuse bit to High 0xFF Low 0x7A (reset enable) or High 0xFE Low 0x7A (reset disable).