Hi Sera!
If you can build a class in Access like in C++ I am not familiar with how you do it. You can create your own data structures and then declare arrays with them. You can also create Put and Pop functions(public of course) that can control the FIFO logic of a queue. Since you are familiar with queues you most likely can handle it this way, if you need some ideas, let me know.
hth
Jeff Bridgham
bridgham@purdue.edu