generalized rollovers?

Hello I am very new to Rebol/ViewPro.. it's wonderful :-) How can I create generalized Icon and Rollover effects for buttons? It seems the default is for text-only changes. While I love the simplicity, I really do want to have more visual buttons as my applications are very checmatic in nature. I have designing with Flash5 for interface applets to connect with server-side scripting using Zope. I am searching for a way to match Flash's button type state frames with Rebol/View Up Over Down Hit - does this paradigm exist or can it be created easily? Am I barking up the wrong tree? Else can I embed Flash inside Rebol/Views and pass data via ActionScripts's XML or HTTP Post/Get constructs.. anyone here familair with this? Thanks for any pointers - Jason