How to delete flagged or edited from iphone albums (iPhoto App)

I have a question -

I was playing around with the iPhoto that I just bought... and to my great disappointment, when I was in the Albums, the iPhone will NOT let me delete either "Edited" or "Flagged".. I want them OUT.. why won't my iPhone allow this? I am really annoyed right now..

Any help would be apprecited because if I can't solve this problem- I will delete this app and never use it again

Thank you