Sorry! I didn't see you there; I hope you get this.
I don't know about Visio 2000 - but I can tell you whether its possible and if so how on Visio 2003.
What are you trying to do then? You have a Visio Diagram; what do you want to do with it?
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.