No problem bro, i'm more than happy to help. 
Just keep all those things we discussed about in mind and you'll be trouble free, Insha Allah. A true detailer is defined by his/her work so work hard if you want to call yourself a detailer!
What brand tires are those? The "browning" or "blooming" of the sidewall of tires is very normal; it is in fact a chemical in every tire which turns brown on contact with air. That chemical naturally protects tires from U.V, ozone etc, its a way better protectant than tire dressings which we use but its good to use dressings just like we use waxes on paint.
Just use normal soap or hair shampoo with a soft to medium brush. Use less if tire is not muddy or really dirty.
Are you referring to the blackbox wax on mf towel? For any wax soak it in a tablespoon of dish wash detergent with few liters of warm to hot water. Water at this temp in necessary to soften the wax stuck in mf so it gets easier to remove. It doesn't have to be blazing hot, just a bit higher than warm. Soak it for an hour or so. Then take it out and start rubbing it with hands gently under warm water, until wax gets removed. Then dry.
I'm currently using ICE synthetic paste wax as its getting hot and i wanted more durability. I've used ICE all interior care; it has mild cleaning and good protection. Do try if your interior is not really dirty.
