Okay, let me break it down a bit, so you don't get tired of my long response. Also please note that I'm a bit of a newbie too, and have a different hair type than you. (3c, med porisity)
My first instinct is to tell you to go off it completely, because it's goal is to strip you of your oils and build up. However, I know bleached hair won't absorb certain colors when re-dyed, so maybe it won't absorb certain ingredients. If you get build up though, I recommend doing a brown sugar scrub first, and if that doesn't work, a non-sulfate shampoo. (I don't use any)
Co-wash: This is using conditioner in place of shampoos. You take a nice thin formula conditioner, and massage your scalp with it, to remove all the build up. (I use Sauve Naturals Green Apple)
Conditioner: MORE MORE MORE MORE
yes. You can never have to much (well you can, but you need moisture) Find a thick heavy formula, and make sure you rinse well. (I use Pantene, which isn't strictly curly girl. It has a cone in it, and cones need sulfates to remove, so you might want to avoid it)
Leave in: A leave in conditioner will do you well. You can use a little of your co-wash or conditioner or a seperate product (I use Garnier Frutics Sleek and Shine Leave in)
Hold: You can use a gel, but I haven't had any good experiences with those yet. I use a mousse (Aussie's Moist Mousse + Leave in) that gives me good hold and some volume
Volume: You can use clips at the crown of your hair. Take a clip and lift up a group of strands and clip it so it doesn't touch the scalp, it will dry and you'll have volume.
Deep Treatment: High porosity girls will sometimes do this twice a month I believe. Protein isn't to bad for hair, only if your hair is senstitve to it. I use Aussie 3 minute miracle, but leave it on over night under a wrap.
Sealent: Since your hair is high porosity, it absorbs moisture real well--but also looses it. Like filling a bucket with holes in it. Once you add the water, it'll quickly start to drain. Sealents (sp?) are usually oil, and you coat your strands in it, to help seal in moisture.
There are natural ways of lightening your hair. Like lemon juice (the porportions range from 1tsp of lemon juice to every 3tsp of water to 1tsp per gallon, but straight lemon juice with break it off, as it is a citric acid) But it takes awhile, most people just make a rinse of of it and rinse their hair with it everyday in the shower till it's lightened. Chamomile too, has been used as a rinse, but I don't know the porportions.
So there you go. You'll probably find better advice by going to the 2 section of the forums for wavies (I have no idea how much my hair care varies from people with wavy hair). The High Porosity threads will probably get great to hit up too. And the Hair dying forum, which offers great tips. Also this site: http://curlgirljourney.blogspot.com/...-products.html
List all (a good portion at least) the curly girl products, on the left hand bar down the side.