sorry if im been dumb here, but i couldnt find a search button on this forum haha anyways im using a macbook pro with cs5 installed, when i import my raw files they come into iphoto, now if i drag and drop them into ''pictures'' its automatically converts them to jpegs, so in iphoto i right click > show file and i can now drag and drop the original raw file into ''pictures'' so i can open it up in cs5, but if i want to keep the original raw file and a edited version i have to copy and paste into ''pictures'' then edit and save, but by the time i have edited the photo, saved it, im left with the...original file.....the copied file....and the edited version which means i have to delete the copied file after every edit. It just seems like a massive confusion/effort from my part,am i completely missing a easier way or is this how mac intends you to photo process? i hope this makes sense 
in advance thanks for any advise
in advance thanks for any advise