I prefer placing the flowers on after arriving at the reception site. This eliminates any risk of them causing any damage to the cake in transport. As for advice, just be sure you are confident with your stacking method and be patient. and enjoy what you're doing!
I have the same problem! I don't spray my pan, and I take them out of the pan after baking, promptly...So far, thank goodness for those cute decorative "sleeves" for cupcakes...but I wish I could just leave them plain sometimes, with just the wrapper.
i made a doll cake once and made giant petal shaped pieces ...put the point at the center of the top and round part at the bottom...and then continued all the way around with i think 5 or so "petals"...then i made seperate fondant swags and attached them w/ bows i liked this because it made the dress look like it layered. it's in my gallery if you want to take a look...oh, and i covered the dress cake first with one giant circle too