Could that be because the title is too general and not many may be using the Real sp convertor?
And, some of us may be waiting for the weekend to catch up with the forums!
I have used XviD4PSP (search for XviD4PSP_5.0.37.8_r132.exe) and converted videos for viewing on the Imagio using the "MP4 Blackberryu 8830" format and they have run fine on the Imagio. I don't know if it will convert Real Media files, if that is what the Real sp convertor was built for --- I have not used it.
Hope that helps.