Well, Mobipocket was the best one for this until Amazon closed it to new publishers. Smashswords would be there best bet. Formatting really isn't that big a deal, the real trick is to eliminate carriage returns. I'd suggest they go to Smashswords and download the howto. If this still looks too complex I know there are dudes in India willing to work on the formatting. Seriously. I know one, Sunny.
formattingguru@gmail.com Then take the file and upload it.
Good luck with it.