Editing information

Hello All,

I was wondering if there was a way to edit/add information to the existing database. For example, adding cast members to movies. I'm not getting a clear representation of films I own by certain actors. I would help to be able to add cast, studio, running time, etc. Also, whenever I try to add titles to the database the image contributor never works. I have all my contributions in jpeg format, but it says they aren't in the specified format and rejects them. Any help would be appreciated. Thanks.

Scott