Trouble with sync once photos are all organized into folders on iphoto. Help!

Question

I have imported and organized all of my pictures of off my iphone into iphoto. I then went to sync like I always do, only requesting that 2 folders (approx 900 photos) be put back on my phone. When the sync finished, it said that itunes couldnt sync 250 of the photos I asked it to. That's 1 issue. It said that itunes would tell my why it couldn't, then it didn't!
Problem #2 is this...my 2 folders of 900 photos shows up on my phone in the folders, but then all 900 photos are also in photo library. How do I keep these from showing up twice? It's taking up all of my memory with every photo being saved to my phone twice.
I've tried to find tutorials & help with Iphone & haven't had much luck. I've imported, foldered, synced, and gone about my business plenty of times before. Now i'm running out of memory & my phone is telling me it can't completely sync.

Answer 1

Is there an Albums section in the left hand pane?  If so move the cursor to the right of the Album name till Show appears and click on it?
If there is no left hand pane where the Event and Photos icons, albums, slideshows, etc. usually sit move the cursor over the  left edge of the window until it turns into a a cross like this:
then click and drag to the right to open the pane.
If you can't get that to work Try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
     User/Home/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
User/Home/Library/Caches/com.apple.iPhoto folder (Snow Leopard and Earlier).
or with Lion and Mt. Lion from the User/Library/Containers/com.apple.iPhoto/
Data/Library/Caches/com.apple.iPhoto folder
3 - launch iPhoto, reset its various preferences and try again. The left hand pane will be visible.
NOTE 1: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto.  You'll also have to reset the iPhoto's various preferences.
NOTE 2:  In Lion and Mountain Lion the Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.
OT