Aww.. sorry it's been so hard. If you want to wait until your friend is there, you could possibly just let her sleep with you and then move her over. I know it will be a hassel when she is falling asleep, BUT it will be good for her to wake up in there and get used to it alittle bit. Plus, you could put her in there for naps so she could get alittle bit more used to it.
Also, when we did the CIO method, I didn't go in the room. I tried 2-3 nights with the going in the room after 5/10 minutes but it didn't work and always made him cry ALOT worse. I know it sounds alittle mean to not go in there, but it worked for us.. and after the first three nights he wasn't crying (just whined once or twice) and by the fifth night he was smiling at me when I was leaving. It was hard the first few nights but it's so much better now, you just have to stick to it like ryder said.. whatever you decide to do, MAKE SURE you stick to it and have a good before routine.