concatenation of elements from a string array?

Hello, I've been going through Richard Baldwin's Alice tutorials and so far I've had little to no problems, until....lesson 180: Arrays. I'm stuck on the lab project for that particular lesson. If anyone would be so kind as to take a look at the lab project (http://www.dickbaldwin.com/alice/Ali...tm#Lab_project) and give me a hint I would really appreciate it.

The problem I have is that I can get the penguin to say every letter of my name, but only by displaying one letter at a time. I need each letter to appear one by one until eventually the entire name appears. I'm guessing that to achieve this I need to concantenate the elements of the array, but I've been trying many different ways for hours now and I feel like my brain is melting out my ears. Please help!