Help with stepfiles

[Strider11o7]

After taking awhile to make a song on stepmania, i finally finished and now i just want to add a few small things.

First; how do you add background pictures? And is there a menu somewhere that let's you change the info about the song? All I could find was a song title/author menu.

Secondly; how would i distribute the song, and where? I found out how to export the song using the package exporter and send some to my friends, but that's about it.

Thanks for any help.