The most probably choice for a wve to mod conversion seems to be the export of Wondershare Video Editor projects (.wve) as MPEGs (.mod). If you looking for this conversion, then you can do that in the program using the default export function. Wondershare also offers trial version, so it may be worthwhile to check the program if you are attempting this conversion. However, it is not clear if the program can export to .mod videos.
As far as we know, other kind of wve to mpeg conversion doesn't seem to be possible. DIVX WVE is just some sort of data file used during the actual DIVX conversion and it probably does not contain the actual video.