o.k. this can be done by the same method that i've post to you, for the same code example here's a link that provide you also the schematics. in this case, it will be a bit more easy to figure it out.

What you have to do is to create a pattern with your PORT output to create every character you want to produce.

Here's the link on the Melabs website. Choose Counter.zip

http://www.melabs.com/resources/samples.htm#submitted

you'll have to work a bit on that....