I don't know if you're aware, but there is a tool that will show you which of the games in your collection have scans, should really help out:
http://www.rfgeneration.c...llection&action=tools If that link doesn't work, click on the Tools tab at the top and from that page click the other Tools tab, and then from there click the button that says "Find Missing Images".
Anyway, submitting images to RFG is really easy and pretty quick too. Just go to the Submit Info page (
http://www.rfgeneration.com/PHP/submitinfo.php) read the FAQ, and then start submitting images. I can usually do a full set of scans for a game in under 5 minutes, starting from taking the first scan to cropping them to submitting the last one.