I was a software engineer for 7 years in a shop that had a formal engineering dept, qa department, etc. They way things worked it we'd release code, qa would perform regression testing (what we're doing), and if they found a defect would enter it into Team Foundation Systems, which is a MIcrosoft tool for change control (listing and resolving defects and such).
If we needed to talk to the qa personnel, we would. Otherwise, we would just fix things and re-submit to qa for further testing. The objective was to resolve 90 percent of the listed defects on the first time through. I think these guys have the situation well in hand. We've given them very well-defined defect with plenty of suggestions of how things should be fixed. Now the devs need to take a decision based on that and implement a fix.
I would expect to have something not this week, but closer to the beginning of the week after next (after 1 January) due to holidays.
When we get the next beta release, expect about a 90 percent solution first time through. They'll probably need to revisit mines again following the next release, but just for fine-tuning. Reason is that it affects play so much.
Just my 2 cents.