Generally, they won't reply to minidump mails (time issues) individually because they get so many. Most fixes are just patched in. There are currently two known causes of minidumps that are not mod or driver related, and IC hopes to have them fixed by 1.1.
Don't get upset because you're not getting a quick reply - even if an issue is confirmed it can take a while to fix. The fact that they asked you for more info should prove that they're analyzing and working on it