They should arrive this week. Buying from eBay means you need to have several irons in the fire so that you don't get bored while waiting for parts to arrive, so I've been working on other projects too. I'm going to make this project public later today anyway. Since I have the blink LED going at 1 Hz I'm pretty sure that part of the code is being executed. The only part I'm not sure of is whether the bit-banging code to transmit to the serial interface LED array works but I'm sure I can fix it if it doesn't.