help with building new hazel recipe

So here's what I want to do: My work process involves saving my omnigraffle files with new file names every time I do a new iteration of them. For example, I complete an iteration, turn over to client. They provide feedback. I start next iteration. At this point I rename file. My filename structure is yyyy.mm.dd.hh.mm_filename. For example if I saved a set of wireframes today it would be 2012.01.22.18.18_mike's wireframes.graffle
Over time I end up with like 5 to 10 files in the folder. It would be nice to automatically move the previous file into an archive once I save a new one.
Help?
Over time I end up with like 5 to 10 files in the folder. It would be nice to automatically move the previous file into an archive once I save a new one.
Help?