Simple stopwatch for Altera DE2 board in Quartus II

Hi, I was wondering, which is the simplest way of creating stopwatch for the Altera DE2 Education board.

I need to implement this function in my project, and I've been experiencing some issues with mz current design :(

In essence, my design looks much like the one I found on this website johnloomis.org/digitallab/diglab/diglab3/diglab3.qdoc.html (sorry, can't post links]

Can anyone help me find more simple solution ?

Thanks a lot :)