This may be the wrong forum, I apologize in advance.

I turned off my iPod touch (fully) and when I turn it back on, all of my Home Screens were changed, plus some applications I had before were missing. I haven't synced to iTunes in a month (and found out there was the 3.1.2 update). Is there a way to get these apps back? They're not on iTunes because I didn't sync. I had eleven full pages, and now I only have 8 full pages. All my playlists were gone, and some of my photos were missing.