adwsystems:
You are on the Arduino forum. If you don't specify a particular board, the assumption here is you are using an Arduino UNO. As I know nothing about the Trinket and until PaulS replies you will need to compare the UNO to the trinket to rectify/correlate some of his comments such as the pin 0 pin 1 comment; which are the USB serial monitor TX/RX pins on an Arduino UNO (see what I mean).
Yes, that was my mistake for not mentioning that it my first post. 0-4 are all IO pins on the Trinket, though 2 can be used as serial. There's just 5- IO pins, a USB pwr pin, reset pin, gnd pin and batt pin