Please help with iPhoto

It's been about 6 weeks since we've made the move over to a Mac. For the most part, it's great. But iPhoto is driving us both crazy. For those of you very fluent in Macanese, please let me know if I'm missing something incredibly basic, or if it is in fact as screwy as it seems. Our problem is in the file layouts. In my iPhoto Library, I have all the Rolls labeled nicely and so on. But that only accounts for about half of our pictures. The rest are buried in the computer. Sometimes I'll make a file for, say, websized photos. I'll save them to the Library, but they don't show up. Then it's the folder trail of Pictures-->iLibrary-->Originals/Modified-->2006-->HopeTheFolderIsHere. What's the secret? Everyone says how much they love the application, but right now neither of us can stand it. It seems much more complicated than the Windows style.

 

Thanks Shaun. But when I try to import photos, it says "Can't import. File is already in the Library". But they're not--they're buried. I can eventually find things if I'm patient enough. I just wish it would all be in one location or another. It's almost too clever for its own good.