richluk Wrote:You mean open 3.52 topmenu.rco then extract then open 3.71 topmenu.rco then copy the extracted files to the 3.71? is there an 3.71 RCO upgrader?

Yeap.  Process is slightly different for topmenu_icon.rco however (newly added in 3.7x).
As for an "automated upgrader" - I dunno, you'll have to look around.

richluk Wrote:I want to convert icons and 01-12.bmp background, wave, I can't get the cintro to work?

Icons, just mentioned.  BMP file, shouldn't be an issue.  Wave should be similar to icons.  Dunno about CIntros...  Why doesn't it work?

richluk Wrote:After this can I flash it directly to Flash

If you have 3.71 M33-2, yes.