I have posted my library before but this time I thought I'd upload a video to help demonstrate. It is a generic 7 segment LCD or LED display driver running a demo program.
http://code.google.com/p/arduino-seven-segment/
Here's how you'd use it, really quick and simple:
// Initialise LCD library
SevenSegment screen(CLOCK, DATA, LOAD);
// Set display driver AY0438 and screen definition
screen.begin("AY0438","8.8|8.8");
// Print message
screen.print("Test");