I'm currently learning this etude, along with Op. 25, No. 9 and some other pieces. I advise against learning this piece unless you know absolutely what you are doing. Do you have a teacher? Seriously, a ton of techniques can be learned from this piece, and to learn them correctly takes time. I'm still on the first page after about a month!
The most difficult parts in the piece are those in bars 29-32 and 42-46, begin those first. I can scan my score and e-mail it to you if you want. It has all the different types of coordination needed to play each bar, as well as fingerings, phrasings, and interpretative nuances. I would be willing to explain anything on it that you aren't able to understand (most of it probably). Otherwise I would be here for hours typing my thoughts on each measure. Or, I could only talk about a page every day, it's up to you.
I'll hopefully send the e-mail out in the next couple days if I find time. I will, over the next 10 days or so, cover the piece thoroughly in writing, here. Probably one page at a time.