I just looked through the lesson plans for SICC-C, and it doesn't look like there is anything on research papers. Research papers are in unit 6 of IEW. I know when we used SWI-B it was covered in there.
I tried to use Elegant Essay with my ds last year, but we didn't have much luck with it. SICC-C spends more than half of the lessons writing different kinds of essays. I am pretty happy with it so far. My son likes Andrew, and is doing very well with it. If you have any other questions I'd be happy to answer them. I'm not an IEW expert, but we've used their products for a few years now.