In general, our goal as a Stack Exchange site is to become the last, final, expert level endpoint for all Freelancing problems. When folks ask a question here, they should walk away feeling that they got an answer that solves their problem.
Therefore, any questions that we can't answer definitively and with authority probably aren't a good fit for our site. Questions where we aren't the experts don't help us further our mission to be a site where experts come for answers.
It seems like a question about how to use Elance effectively would be best answered by the people who built and who support Elance everyday in their daily work.
To me, it seems that questions about the software, the interface, technical details, and basic usage should be off-topic on our site, but if the question involves a Freelancing problem, something that would be best answered by a professional Freelancer who uses Elance in their daily work, then the question would likely be better asked here.
To be more clear, the question fits our format, it's just a matter of whether or not we as a community feel we can provide value on these questions or not. As far as that goes, I'd say we may have to see more of these types of questions asked here to know for sure.