jcdammeyer,
Sorry about your lack of joy. I don't know why yours isn't working, I have gotten serveral emails from others that are working.
So, lets figure out why not you. 1st Are you using standard Mach install and directory path?
If yes then I have enclosed a file for you with JUST the bitmaps in them. Open the file, copy the files (3 of them), navigate to Mach3 then to Bitmaps, click on it (use windows explorer). make sure you see lots of little pictures (thumbnails) in the window to the right of the directory tree. Then right click into the standard/general Bitmaps Window (the one on the right with the little icons/pics), then hit the "Paste" option after you right click in that window. You should see your three pictures appear in this window.
The Wizard looks for these bitmaps in this directory path: C:\Mach3\Bitmaps
Let me know how that works for you, download files attached here.
Scott