I think categories is probably one of current highest priorities.
And we're resizing the covers for browsing, when you bring up the details it'll show you the regular cover. I guess we might need to work on the resizing and stretching ;-)
Keep up the suggestions/issues this is an open source project with some developers behind it that like to listen to the users :)
For debugging purposes we also create a log file... we recently changed where this is being saved... so I actually can't remember... I think its in your user data folder? I'm sure one of the other developers will chime up with that info but that can be very helpful for us debugging the issues :)
Warren - The OML Slacker