its probably teeth waking her up. sleep habits will never be "normal" or through the night. just get used to it... having a baby changes your life, and thats not just a during the day sort of thing!
as far as feeding solids, you dont start until baby is ready. this means she has to want the food (not just the spoon, try giving her the spoon, if that satisfies her, its the tool, not the food thats interesting her) she has to be able to hold her head up and sit up on her own (not just sit supported, get to sitting and sit there on her own)
shes probably ready "age wise" but theres no nutritional need for solid foods until after a year, so dont stress about it. you can feed her solids, but you dont have to. the way i think about it is kids eat you out of house and home soon enough, why rush into it when they are babies? ??
i started my son at 5 1/2 months and that was because he was literally grabbing the spoons out of our hands, and eating the food off of it... ! we couldnt keep him away from food any longer. i wanted to wait WAY longer to start solids, but he was ready and MORE than willing LOL. but i still took it slow
no food in baby bottles. they should learn food as food not as drink. usually they wont drink it anyway because they are used to the bottle being formula or milk, and thats it. dont give juice in the bottle either, only formula or breastmilk (if and when you start regular milk, which shouldnt be until after a year old, it should be in a sippy cup, however, soy almond or rice milk is better nutritionally for all humans)
anyway, www.askdrsears.com is a great resource!