Something to keep in mind... Porting is when you take someone's work from one format, and reassemble it in some other format (with permission, of course). That would include converting an msstyle to WindowBlinds, or making an IconPackage out of a bunch of lose icons. However, simply uploading someone's wallpaper directly is not porting. If the work involved is nothing more than downloading from one site and uploading to another, I'd say skip it.
Also, you might want to try and convince the author to submit his own work here. Maybe he's not interested in WinCustomize, but it's worth a try. 
